build: Relocate commentedconfiguration

build: Make MV5 build with gradle
Merge branch 'main' into update-gradle
2023-02-20 12:11:27 +08:00 · 2023-02-20 11:58:03 +08:00 · 2023-02-20 11:56:32 +08:00 · 2023-02-19 22:55:44 -05:00 · 2023-02-19 22:51:30 -05:00 · 2023-02-20 11:23:57 +08:00
262 changed files with 19742 additions and 8234 deletions
@@ -0,0 +1,77 @@
+name: 🐛 Report a Bug
+description: Report a problem with Multiverse-Core.
+title: "[Bug]: "
+labels: ["Bug: Unconfirmed"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+
+        If you are having issues with other submodules of Multiverse, please go to their respective git repo:
+            Multiverse-Portals: https://github.com/Multiverse/Multiverse-Portals/issues/new/choose
+            Multiverse-NetherPortals: https://github.com/Multiverse/Multiverse-NetherPortals/issues/new/choose
+            Multiverse-Inventories: https://github.com/Multiverse/Multiverse-Inventories/issues/new/choose
+            Multiverse-SignPortals: https://github.com/Multiverse/Multiverse-SignPortals/issues/new/choose
+
+        Not sure if this is a bug with Multiverse-Core? Feel free to ask on our Discord server: https://discord.gg/NZtfKky
+
+        When completing the report, please ensure all fields are filled with the correct details requested. Failure to do so will result in your issue being closed.
+  - type: input
+    id: mutliverse-version-info
+    attributes:
+      label: '`/mv version -p` output'
+      description: Run `/mv version -p` in the console, then copy and paste the link from the output of the command into this box.
+    validations:
+      required: true
+  - type: input
+    id: server-logs
+    attributes:
+      label: Server logs
+      description: >
+        Include full startup log and console error (if any). upload all relevant logs to either https://paste.gg
+        or https://gist.github.com, save and the paste the link in this box.
+    validations:
+      required: true
+  - type: textarea
+    id: server-version
+    attributes:
+      label: Server Version
+      description: Output of `/version` command.
+      placeholder: server version info
+      render: shell
+    validations:
+      required: true
+  - type: textarea
+    id: bug-description
+    attributes:
+      label: Bug Description
+      description: Describe in detail what the bug is about. Include the expected behaviour and actual behaviour.
+      placeholder: "Example: When running `/mv` it cause the server to crash..."
+    validations:
+      required: true
+  - type: textarea
+    id: reproduce-steps
+    attributes:
+      label: Steps to reproduce
+      description: Provide detailed intructions to trigger the bug.
+      placeholder: |
+        Example:
+          1. Start a server with only multiverse installed.
+          2. Run `/mv` command.
+          3. Players all get kicked with a "server closed" message.
+          ...
+    validations:
+      required: true
+  - type: checkboxes
+    id: agreements
+    attributes:
+      label: Agreements
+      description: Ensure you have done the following being submitting this issue.
+      options:
+        - label: I have searched for and ensured there isn't already an open or resolved issue(s) regarding this.
+          required: true
+        - label: >
+            I was able to reproduce my issue on a freshly setup and up-to-date server with the latest
+            version of Multiverse plugins with no other plugins and with no kinds of other server or client mods.
+          required: true
@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: 💬 Multiverse Discord Server
+    url: https://discord.gg/NZtfKky
+    about: Need help with using Multiverse-Core or just want to chat with the devs? Join the Multiverse Discord Server for help!
@@ -0,0 +1,41 @@
+name: 💡 Request a Feature
+description: Suggest a feature you want to see in Multiverse-Core!
+title: "[Idea]: "
+labels: ["Type: Idea"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to share your ideas!
+
+        If you are look for other submodules of Multiverse, go to their respective git repo:
+            Multiverse-Portals: https://github.com/Multiverse/Multiverse-Portals/issues/new/choose
+            Multiverse-NetherPortals: https://github.com/Multiverse/Multiverse-NetherPortals/issues/new/choose
+            Multiverse-Inventories: https://github.com/Multiverse/Multiverse-Inventories/issues/new/choose
+            Multiverse-SignPortals: https://github.com/Multiverse/Multiverse-SignPortals/issues/new/choose
+
+        Not sure if your feature fits in Multiverse-Core? Feel free to ask on our Discord server: https://discord.gg/NZtfKky
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Describe the feature
+      description: What feature are you suggesting?
+      placeholder: "Example: I hope multiverse can implement random teleport feature..."
+    validations:
+      required: true
+  - type: textarea
+    id: feature-reasoning
+    attributes:
+      label: How is the feature useful to all Multiverse users?
+      description: How is the feature useful to all players, server owners and/or developers?
+      placeholder: "Example: Random teleporting can be integrated into many multiverse modules such as mv-portals..."
+    validations:
+      required: true
+  - type: checkboxes
+    id: agreements
+    attributes:
+      label: Agreements
+      description: Ensure you have done the following being submitting this issue.
+      options:
+        - label: I have searched for and ensured there isn't already an open issue regarding this.
+          required: true
@@ -0,0 +1,61 @@
+name: Create Release Version
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  release_on_push:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-java@v3
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Validate Gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+      - name: Test & Build
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: clean build -x assemble -x shadowJar
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create release
+        uses: rymndhng/release-on-push-action@v0.27.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          bump_version_scheme: norelease
+          tag_prefix: v
+          release_name: "Release <RELEASE_VERSION>"
+          use_github_release_notes: true
+
+      - name: Get release
+        id: get_release
+        uses: bruceadams/get-release@v1.3.2
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+
+      - name: Publish package
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: publish
+        env:
+          GITHUB_VERSION: ${{ steps.get_release.outputs.tag }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload release artifact
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.get_release.outputs.upload_url }}
+          asset_path: build/libs/Multiverse-Core-${{ steps.get_release.outputs.tag }}.jar
+          asset_name: Multiverse-Core-${{ steps.get_release.outputs.tag }}.jar
+          asset_content_type: application/java-archive
@@ -0,0 +1,18 @@
+name: Require PR Labels
+
+on:
+  pull_request:
+    types: [opened, labeled, unlabeled, synchronize]
+    branches: [main]
+
+jobs:
+  require_label:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: mheap/github-action-required-labels@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          mode: exactly
+          count: 1
+          labels: "release:major, release:minor, release:patch, no release"
@@ -0,0 +1,29 @@
+name: Run unit tests against all PRs
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-java@v3
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Validate Gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+      - name: Run unit tests
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: build
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -2,6 +2,7 @@
 /.classpath
 /.project
 /.settings
+/.checkstyle

 # netbeans
 /nbproject
@@ -11,6 +12,7 @@

 # maven
 /target
+dependency-reduced-pom.xml

 # vim
 .*.sw[a-p]
@@ -33,4 +35,14 @@
 .idea/

 # Fern's utils
-uploadtoserver.sh
+uploadtoserver.sh
+
+# Testing files:
+debug.log
+
+# Doxygen
+/docs/html
+debug.txt
+
+# Gradle
+.gradle
@@ -1,7 +0,0 @@
-[submodule "lib/allpay"]
-	path = lib/allpay
-	url = git://github.com/FernFerret/AllPay.git
-[submodule "lib/commandhandler"]
-	path = lib/commandhandler
-	url = git://github.com/PneumatiCraft/CommandHandler.git
-        branch = notrie
@@ -0,0 +1,6 @@
+Copyright (c) 2011, The Multiverse Team All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the The Multiverse Team nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
@@ -1,5 +1,44 @@
-Copyright (c) 2011, The Multiverse Team All rights reserved.
+![Multiverse 2](config/multiverse2-long.png)

-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+[![Maven CI/CD](https://github.com/Multiverse/Multiverse-Core/actions/workflows/build.yml/badge.svg)](https://github.com/Multiverse/Multiverse-Core/actions/workflows/build.yml)
+[![Release](https://img.shields.io/nexus/r/com.onarandombox.multiversecore/Multiverse-Core?label=release&server=https%3A%2F%2Frepo.onarandombox.com%2F)](https://dev.bukkit.org/projects/multiverse-core)
+[![Dev builds](https://img.shields.io/nexus/s/com.onarandombox.multiversecore/Multiverse-Core?label=dev%20builds&server=http%3A%2F%2Frepo.onarandombox.com%2F)](https://ci.onarandombox.com/job/Multiverse-Core/)
+[![Discord](https://img.shields.io/discord/325459248047980545?label=discord&logo=discord)](https://discord.gg/NZtfKky)
+[![Support me on Patreon](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Fshieldsio-patreon.vercel.app%2Fapi%3Fusername%3Ddumptruckman%26type%3Dpatrons&style=flat)](https://patreon.com/dumptruckman)
+[![License](https://img.shields.io/github/license/Multiverse/Multiverse-Core)](LICENSE.md)

-Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the The Multiverse Team nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+About
+========
+[Multiverse](https://dev.bukkit.org/projects/multiverse-core) was created at the dawn of Bukkit multiworld support. It has since then grown into a **complete world management solution!** Multiverse provides the easiest to use world management solution for your Minecraft server, big or small, and with great addons like [Portals](https://dev.bukkit.org/projects/multiverse-portals) and [NetherPortals](https://dev.bukkit.org/projects/multiverse-netherportals/), what's not to love!
+<br><br>
+Now it's time to create your very own Multiverse server, do check out our [Wiki](https://github.com/Multiverse/Multiverse-Core/wiki) and [Usage Guide](https://github.com/Multiverse/Multiverse-Core/wiki/Basics) to get started. Feel free to hop onto our [Discord](https://discord.gg/NZtfKky) if you have any question or just want to have a chat with us!
+
+### Amazing sub-modules available:
+* [Multiverse-NetherPortals](https://github.com/Multiverse/Multiverse-NetherPortals) -> Have separate nether and end worlds for each of your overworlds!
+* [Multiverse-Portals](https://github.com/Multiverse/Multiverse-Portals) -> Make custom portals to go to any destination!
+* [Multiverse-Inventories](https://github.com/Multiverse/Multiverse-Inventories) -> Have separated players stats and inventories per world or per group of worlds.
+* [Multiverse-SignPortals](https://github.com/Multiverse/Multiverse-SignPortals) -> Signs as teleprompters!
+
+Building
+========
+Simply build the source with Gradle:
+```
+./gradlew build
+```
+More details are available on the [build instructions wiki page](https://github.com/Multiverse/Multiverse-Core/wiki/Building).
+
+
+Contributing
+=======
+**Want to help improve Multiverse?** There are several ways you can support and contribute to the project.
+* Take a look at our "Bug: Unconfirmed" issues, where you can find issues that need extra testing and investigation.
+* Want others to love Multiverse too? You can join the [Multiverse Discord community](https://discord.gg/NZtfKky) and help others with issues and setup!
+* A Multiverse guru? You can update our [Wiki](https://github.com/Multiverse/Multiverse-Core/wiki) with your latest tip, tricks and guides! The wiki open for all to edit and improve.
+* Love coding? You could look at ["State: Open to PR"](https://github.com/Multiverse/Multiverse-Core/labels/State%3A%20Open%20to%20PR) and ["Resolution: Accepted"](https://github.com/Multiverse/Multiverse-Core/labels/Resolution%3A%20Accepted) issues. We're always happy to receive bug fixes and feature additions as [pull requests](https://www.freecodecamp.org/news/how-to-make-your-first-pull-request-on-github-3/).
+* If you'd like to make a financial contribution to the project, do consider joining our [patreon](https://www.patreon.com/dumptruckman) or make a one-time donation [here](https://paypal.me/dumptruckman)!
+
+Additionally, we would like to give a big thanks to everyone that has supported Multiverse over the years, as well as those in the years to come. Thank you!
+
+License
+=======
+Multiverse-Core is licensed under BSD-3-Clause License. Please see [LICENSE.md](LICENSE.md) for more info.
@@ -0,0 +1,196 @@
+import org.apache.tools.ant.filters.ReplaceTokens
+
+plugins {
+    id 'java-library'
+    id 'maven-publish'
+    id 'checkstyle'
+    id 'com.github.johnrengelman.shadow' version '7.1.2'
+}
+
+version = System.getenv('GITHUB_VERSION')?.substring(1) ?: 'local'
+group = 'com.onarandombox.multiversecore'
+description = 'Multiverse-Core'
+
+java.sourceCompatibility = JavaVersion.VERSION_11
+
+repositories {
+    mavenLocal()
+    maven {
+        url = uri('https://hub.spigotmc.org/nexus/content/repositories/snapshots/')
+    }
+
+    maven {
+        url = uri('https://repo.onarandombox.com/content/groups/public')
+    }
+
+    maven {
+        url = uri('https://hub.spigotmc.org/nexus/content/groups/public/')
+    }
+
+    maven {
+        url = uri('https://jitpack.io')
+    }
+
+    maven {
+        url = uri('https://repo.minebench.de/')
+    }
+
+    maven {
+        url = uri('https://repo.maven.apache.org/maven2/')
+    }
+
+    maven {
+        name = 'aikar repo'
+        url = uri('https://repo.aikar.co/content/groups/aikar/')
+    }
+
+    maven {
+        name = 'glaremasters repo'
+        url = 'https://repo.glaremasters.me/repository/towny/'
+    }
+}
+
+dependencies {
+    // Spigot
+    implementation('org.spigotmc:spigot-api:1.16.5-R0.1-SNAPSHOT') {
+        exclude group: 'junit', module: 'junit'
+    }
+
+    // Economy
+    implementation('com.github.MilkBowl:VaultAPI:1.7.1') {
+        exclude group: 'org.bukkit', module: 'bukkit'
+    }
+
+    // Command Framework
+    api 'co.aikar:acf-paper:0.5.1-SNAPSHOT'
+
+    // Config
+    api('me.main__.util:SerializationConfig:1.7') {
+        exclude group: 'org.bukkit', module: 'bukkit'
+    }
+    api('io.github.townyadvanced.commentedconfiguration:CommentedConfiguration:1.0.0') {
+        exclude group: 'org.spigotmc', module: 'spigot-api'
+    }
+
+    // Utils
+    api('com.dumptruckman.minecraft:Logging:1.1.1') {
+        exclude group: 'junit', module: 'junit'
+    }
+    api 'de.themoep.idconverter:mappings:1.2-SNAPSHOT'
+    api 'org.bstats:bstats-bukkit:2.2.1'
+    api 'net.minidev:json-smart:2.4.8'
+    api 'org.jetbrains:annotations:22.0.0'
+
+    // Tests
+    testImplementation 'junit:junit:4.13.1'
+    testImplementation 'org.mockito:mockito-core:3.11.2'
+    testImplementation 'commons-io:commons-io:2.7'
+}
+
+
+java {
+    withSourcesJar()
+    withJavadocJar()
+}
+
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+}
+
+tasks.withType(Javadoc) {
+    options.encoding = 'UTF-8'
+}
+
+
+configurations {
+    [apiElements, runtimeElements].each {
+        it.outgoing.artifacts.removeIf { it.buildDependencies.getDependencies(null).contains(jar) }
+        it.outgoing.artifact(shadowJar)
+    }
+}
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from components.java
+        }
+    }
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = "https://maven.pkg.github.com/Multiverse/Multiverse-Core"
+            credentials {
+                username = System.getenv("GITHUB_ACTOR")
+                password = System.getenv("GITHUB_TOKEN")
+            }
+        }
+    }
+}
+
+
+ext.bitlyAccessToken = System.getenv('BITLY_ACCESS_TOKEN') ?: 'bitly-access-token'
+
+task prepareSource(type: Sync) {
+    inputs.property 'bitlyAccessToken', bitlyAccessToken
+    from sourceSets.main.java
+    into "$buildDir/src"
+    filter(ReplaceTokens, tokens: [
+            'bitly-access-token': bitlyAccessToken,
+    ])
+}
+
+compileJava {
+    source = prepareSource.outputs
+}
+
+processResources {
+    def props = [version: "${project.version}"]
+    inputs.properties props
+    filteringCharset 'UTF-8'
+    filesMatching('plugin.yml') {
+        expand props
+    }
+
+    // This task should never be skipped. The tests depend on this having been run but we want the new version number
+    // that is created after tests are run and before we run again to publish.
+    outputs.upToDateWhen { false }
+}
+
+
+checkstyle {
+    toolVersion = '6.1.1'
+    configFile file('config/mv_checks.xml')
+    ignoreFailures = true
+}
+
+
+javadoc {
+    source = sourceSets.main.allJava
+    classpath = configurations.compileClasspath
+}
+
+
+project.configurations.api.canBeResolved = true
+
+shadowJar {
+    relocate 'co.alkar.commands', 'com.onarandombox.acf'
+    relocate 'com.dumptruckman.minecraft.util.Logging', 'com.onarandombox.MultiverseCore.utils.CoreLogging'
+    relocate 'com.dumptruckman.minecraft.util.DebugLog', 'com.onarandombox.MultiverseCore.utils.DebugFileLogger'
+    relocate 'de.themoep.idconverter', 'com.onarandombox.idconverter'
+    relocate 'io.github.townyadvanced.commentedconfiguration', 'com.onarandombox.commentedconfiguration'
+    relocate 'me.main__.util', 'com.onarandombox.serializationconfig'
+    relocate 'org.bstats', 'com.onarandombox.bstats'
+
+    configurations = [project.configurations.api]
+
+    archiveFileName = "$baseName-$version.$extension"
+}
+
+build.dependsOn shadowJar
+
+
+// Excludes all test
+// TODO: Remove this when we have tests for MV5
+test {
+    exclude '**/*'
+}
@@ -0,0 +1,141 @@
+<!--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  ~ Multiverse 2 Copyright (c) the Multiverse Team 2011.                      ~
+  ~ Multiverse 2 is licensed under the BSD License.                           ~
+  ~ For more information please check the README.md file included             ~
+  ~ with this project.                                                        ~
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
+
+<!DOCTYPE module PUBLIC
+    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<!-- Future reference: valid severity values are 'ignore', 'info', 'warning', 'error' -->
+<module name="Checker">
+    <module name="JavadocPackage">
+        <property name="allowLegacy" value="true"/>
+    </module>
+    <module name="NewlineAtEndOfFile" />
+    <module name="Translation"/>
+    <module name="FileLength"/>
+    <module name="FileTabCharacter">
+        <property name="eachLine" value="true"/>
+    </module>
+    <module name="RegexpSingleline">
+        <property name="message" value="Line has trailing spaces."/>
+        <property name="format" value="\s+$"/>
+    </module>
+    <module name="SuppressWithNearbyCommentFilter">
+        <property name="commentFormat" value="SUPPRESS CHECKSTYLE: (\w+)"/>
+        <property name="checkFormat" value="$1"/>
+    </module>
+    <module name="SuppressionCommentFilter">
+           <property name="offCommentFormat" value="BEGIN CHECKSTYLE-SUPPRESSION\: (\w+)"/>
+           <property name="onCommentFormat" value="END CHECKSTYLE-SUPPRESSION\: (\w+)"/>
+           <property name="checkFormat" value="$1"/>
+    </module>
+    <module name="SuppressionCommentFilter">
+           <property name="offCommentFormat" value="BEGIN CHECKSTYLE-SUPPRESSION\: ALL"/>
+           <property name="onCommentFormat" value="END CHECKSTYLE-SUPPRESSION\: ALL"/>
+    </module>
+    <module name="TreeWalker">
+        <!-- Make suppression possible -->
+        <module name="FileContentsHolder"/>
+        <!-- Actual checks -->
+        <module name="LineLength">
+            <property name="max" value="160"/>
+            <property name="severity" value="warning"/>
+        </module>
+        <module name="JavadocMethod">
+            <property name="scope" value="package"/><!-- We don't need javadoc for private methods -->
+            <property name="tokens" value="METHOD_DEF"/><!-- We don't need javadoc for constructors -->
+        </module>
+        <module name="JavadocType"/>
+        <module name="JavadocVariable">
+            <property name="scope" value="package"/><!-- We don't need javadoc for private variables -->
+        </module>
+        <module name="JavadocStyle"/>
+        <module name="WriteTag">
+            <property name="tag" value="@author"/>
+            <property name="tagFormat" value="\S"/>
+            <property name="severity" value="ignore"/>
+            <property name="tagSeverity" value="warning"/>
+        </module>
+        <module name="ConstantName"/>
+        <module name="LocalVariableName"/>
+        <module name="MemberName"/>
+        <module name="MethodName"/>
+        <module name="PackageName"/>
+        <module name="ParameterName"/>
+        <module name="StaticVariableName"/>
+        <module name="TypeName"/>
+        <module name="AvoidStarImport">
+            <property name="severity" value="warning"/>
+            <property name="excludes" value="com.onarandombox.MultiverseCore.utils,com.onarandombox.MultiverseCore.configuration,com.onarandombox.MultiverseCore.commandsold,com.onarandombox.MultiverseCore.destination"/>
+        </module>
+        <module name="IllegalImport"/>
+        <module name="RedundantImport"/>
+        <module name="UnusedImports">
+            <property name="processJavadoc" value="true"/>
+        </module>
+        <module name="MethodLength">
+            <property name="severity" value="warning"/>
+            <property name="countEmpty" value="false"/>
+        </module>
+        <module name="ParameterNumber"/>
+        <module name="EmptyForIteratorPad"/>
+        <module name="MethodParamPad"/>
+        <module name="NoWhitespaceAfter">
+            <property name="tokens" value="BNOT, DEC, DOT, INC, LNOT, UNARY_MINUS, UNARY_PLUS"/>
+        </module>
+        <module name="NoWhitespaceBefore"/>
+        <module name="OperatorWrap"/>
+        <module name="ParenPad"/>
+        <module name="TypecastParenPad"/>
+        <module name="WhitespaceAfter">
+            <property name="severity" value="warning"/>
+        </module>
+        <module name="WhitespaceAround">
+            <property name="severity" value="warning"/>
+        </module>
+        <module name="ModifierOrder"/>
+        <module name="RedundantModifier"/>
+        <module name="AvoidNestedBlocks"/>
+        <module name="EmptyBlock">
+            <property name="tokens" value="LITERAL_DO,LITERAL_ELSE,LITERAL_FINALLY,LITERAL_IF,LITERAL_FOR,LITERAL_TRY,LITERAL_WHILE,INSTANCE_INIT,STATIC_INIT"/>
+        </module>
+        <module name="LeftCurly"/>
+        <module name="RightCurly"/>
+        <module name="EmptyStatement"/>
+        <module name="EqualsHashCode"/>
+        <module name="HiddenField">
+            <property name="tokens" value="VARIABLE_DEF"/><!-- We don't care if parameters hide fields. -->
+        </module>
+        <module name="IllegalInstantiation"/>
+        <module name="InnerAssignment"/>
+        <module name="MagicNumber">
+            <property name="ignoreNumbers" value="-1, 0, 0.5, 1, 2, 3"/>
+        </module>
+        <module name="MissingSwitchDefault"/>
+        <module name="SimplifyBooleanExpression"/>
+        <module name="SimplifyBooleanReturn"/>
+        <!-- Don't like errors for `final` missing
+        <module name="DesignForExtension"/>
+        <module name="FinalClass"/>
+        -->
+        <module name="HideUtilityClassConstructor"/>
+        <module name="InterfaceIsType"/>
+        <module name="VisibilityModifier">
+            <property name="protectedAllowed" value="true"/>
+        </module>
+        <module name="ArrayTypeStyle"/>
+        <!-- Don't like errors for `final` missing
+        <module name="FinalParameters"/>
+        -->
+        <module name="TodoComment">
+            <property name="severity" value="info"/>
+        </module>
+        <module name="UpperEll"/>
+        <module name="Indentation"/>
+        <module name="MissingDeprecated"/>
+        <module name="MissingOverride"/>
+    </module>
+</module>
@@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
@@ -0,0 +1,244 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
@@ -1,196 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>com.onarandombox.multiversecore</groupId>
-    <artifactId>Multiverse-Core</artifactId>
-    <version>2.1</version>
-    <name>Multiverse-Core</name>
-    <description>World Management Plugin</description>
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.build.number>UNKNOWN</project.build.number>
-    </properties>
-
-    <repositories>
-        <repository>
-            <id>OnARandomBox</id>
-            <url>http://repo.onarandombox.com/artifactory/repo</url>
-        </repository>
-    </repositories>
-
-    <pluginRepositories>
-        <pluginRepository>
-            <id>doodleproject-repo</id>
-            <name>DoodleProject Maven 2 Repository</name>
-            <url>http://doodleproject.sourceforge.net/maven2/release</url>
-            <releases>
-                <enabled>true</enabled>
-            </releases>
-        </pluginRepository>
-    </pluginRepositories>
-
-    <ciManagement>
-        <system>jenkins</system>
-        <url>http://ci.onarandombox.com</url>
-    </ciManagement>
-
-    <build>
-        <defaultGoal>clean package</defaultGoal>
-        <plugins>
-            <!-- Compiler -->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>2.3.2</version>
-                <configuration>
-                    <source>1.6</source>
-                    <target>1.6</target>
-                </configuration>
-            </plugin>
-            <!-- Build Helper - Additional Source Folders -->
-            <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>build-helper-maven-plugin</artifactId>
-                <version>1.7</version>
-                <executions>
-                    <execution>
-                        <id>add-wsdl-source</id>
-                        <phase>generate-sources</phase>
-                        <goals>
-                            <goal>add-source</goal>
-                        </goals>
-                        <configuration>
-                            <sources>
-                                <source>${project.basedir}/lib/allpay/src</source>
-                                <source>${project.basedir}/lib/commandhandler/src</source>
-                                <source>${project.basedir}/lib/commandhandler/lib/ShellParser/src</source>
-                            </sources>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>com.google.code.maven-replacer-plugin</groupId>
-                <artifactId>maven-replacer-plugin</artifactId>
-                <version>1.3.8</version>
-                <executions>
-                    <execution>
-                        <phase>prepare-package</phase>
-                        <goals>
-                            <goal>replace</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <file>target/classes/plugin.yml</file>
-                    <replacements>
-                        <replacement>
-                            <token>maven-version-number</token>
-                            <value>${project.version}-${project.build.number}</value>
-                        </replacement>
-                    </replacements>
-                </configuration>
-            </plugin>
-            <!-- Jar Plugin -->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>2.3.1</version>
-                <configuration>
-                    <archive>
-                        <manifestEntries>
-                        </manifestEntries>
-                    </archive>
-                </configuration>
-            </plugin>
-            <!-- Maven Source Plugin -->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-source-plugin</artifactId>
-                <version>2.1.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
-    <dependencies>
-        <!-- Bukkit Dependency -->
-        <dependency>
-            <groupId>org.bukkit</groupId>
-            <artifactId>bukkit</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <!-- Bukkit Dependency -->
-        <!-- Start of Spout -->
-        <dependency>
-            <groupId>org.getspout</groupId>
-            <artifactId>spoutapi</artifactId>
-            <version>dev-SNAPSHOT</version>
-        </dependency>
-        <!-- End of Spout -->
-        <!-- Start of Economy Dependencies -->
-        <dependency>
-            <groupId>cosine.boseconomy</groupId>
-            <artifactId>BOSEconomy</artifactId>
-            <version>0.6.2</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>fr.crafter.tickleman.RealShop</groupId>
-            <artifactId>RealShop</artifactId>
-            <version>0.63</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>com.iCo6</groupId>
-            <artifactId>iConomy</artifactId>
-            <version>6.0</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>com.iConomy</groupId>
-            <artifactId>iConomy</artifactId>
-            <version>5.0</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>com.nijiko.coelho.iConomy</groupId>
-            <artifactId>iConomy</artifactId>
-            <version>4.65</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>com.earth2me.essentials</groupId>
-            <artifactId>Essentials</artifactId>
-            <version>2.4.2</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>me.ashtheking.currency</groupId>
-            <artifactId>MultiCurrency</artifactId>
-            <version>0.09</version>
-            <type>jar</type>
-            <scope>compile</scope>
-        </dependency>
-        <!-- End of Economy Dependencies -->
-        <!-- Start of JUnit Dependencies -->
-        <dependency>
-            <groupId>org.junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.8.2</version>
-        </dependency>
-        <!-- End of JUnit Dependencies -->
-    </dependencies>
-</project>
@@ -0,0 +1,5 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ */
+
+rootProject.name = 'Multiverse-Core'
@@ -1,17 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore;
-
-/**
- * Dummy class to make old MV Plugins not explode.
- * If this loads, the user WILL get a severe telling them to update said plugin!
- * WILL BE DELETED ON 11/1/11
- */
-@Deprecated
-public interface LoggablePlugin extends com.onarandombox.MultiverseCore.api.LoggablePlugin {
-}
@@ -1,20 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore;
-
-/**
- * Dummy class to make old MV Plugins not explode.
- * If this loads, the user WILL get a severe telling them to update said plugin!
- * WILL BE DELETED ON 11/1/11
- */
-@Deprecated
-public class MVPermissions extends com.onarandombox.MultiverseCore.utils.MVPermissions {
-    public MVPermissions(MultiverseCore plugin) {
-        super(plugin);
-    }
-}
@@ -1,17 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore;
-
-/**
- * Dummy class to make old MV Plugins not explode.
- * If this loads, the user WILL get a severe telling them to update said plugin!
- * WILL BE DELETED ON 11/1/11
- */
-@Deprecated
-public interface MVPlugin extends com.onarandombox.MultiverseCore.api.MVPlugin {
-}
@@ -1,846 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore;
-
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.enums.EnglishChatColor;
-import com.onarandombox.MultiverseCore.utils.BlockSafety;
-import com.onarandombox.MultiverseCore.utils.LocationManipulation;
-import com.onarandombox.MultiverseCore.utils.SafeTTeleporter;
-import org.bukkit.*;
-import org.bukkit.World.Environment;
-import org.bukkit.configuration.ConfigurationSection;
-import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.Permission;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.logging.Level;
-
-
-public class MVWorld implements MultiverseWorld {
-
-    private MultiverseCore plugin; // Hold the Plugin Instance.
-    private FileConfiguration config; // Hold the Configuration File.
-    private ConfigurationSection worldSection; // Holds the section of the config file for this world.
-
-    private World world; // The World Instance.
-    private Environment environment; // Hold the Environment type EG Environment.NETHER / Environment.NORMAL
-    private Long seed;
-
-    private String name; // The Worlds Name, EG its folder name.
-    private String alias = ""; // Short Alias for the World, this will be used in Chat Prefixes.
-    private ChatColor aliasColor; // Color for this world
-
-    private boolean allowAnimals; // Does this World allow Animals to Spawn?
-    private boolean allowMonsters; // Does this World allow Monsters to Spawn?
-
-    private boolean keepSpawnInMemory; // Does the World have the spawn loaded all the time?
-
-    private boolean pvp; // Does this World allow PVP?
-    private boolean fakePVP; // Should this world have fakePVP on? (used for PVP zones)
-
-    private GameMode gameMode = GameMode.SURVIVAL;
-
-    private String respawnWorld; // Contains the name of the World to respawn the player to
-
-
-    private Map<String, List<String>> masterList;
-
-    private double scaling; // How stretched/compressed distances are
-    private double price; // How much does it cost to enter this world
-    private int currency = -1; // What is the currency
-    private boolean hunger = true;
-    private Permission permission;
-    private Permission exempt;
-
-    private boolean canSave = false; // Prevents all the setters from constantly saving to the config when being called from the constructor.
-    private boolean allowWeather;
-    private Location spawnLocation;
-    private boolean isHidden = false;
-
-    public MVWorld(World world, FileConfiguration config, MultiverseCore instance, Long seed, String generatorString) {
-        this.config = config;
-        this.plugin = instance;
-
-        // Set local values that CANNOT be changed by user
-        this.world = world;
-        this.name = world.getName();
-        this.seed = seed;
-        this.environment = world.getEnvironment();
-
-        // Initialize our lists
-        this.initLists();
-        worldSection = config.getConfigurationSection("worlds." + this.name);
-        if (worldSection == null) {
-            config.createSection("worlds." + this.name);
-            worldSection = config.getConfigurationSection("worlds." + this.name);
-        }
-        // Write these files to the config (once it's saved)
-        if (generatorString != null) {
-            worldSection.set("generator", generatorString);
-        }
-        if (seed != null) {
-            worldSection.set("seed", this.seed);
-        }
-        worldSection.set("environment", this.environment.toString());
-
-        // Set local values that CAN be changed by the user
-        this.setAlias(worldSection.getString("alias.name", ""));
-        this.setColor(worldSection.getString("alias.color", ChatColor.WHITE.toString()));
-        this.setPVPMode(worldSection.getBoolean("pvp", true));
-        this.setFakePVPMode(worldSection.getBoolean("fakepvp", false));
-        this.setScaling(worldSection.getDouble("scale", this.getDefaultScale(this.environment)));
-        this.setRespawnToWorld(worldSection.getString("respawnworld", ""));
-        this.setEnableWeather(worldSection.getBoolean("allowweather", true));
-        this.setDifficulty(worldSection.get("difficulty", "EASY"));
-
-        this.setAllowAnimalSpawn(worldSection.getBoolean("animals.spawn", true));
-        this.setAllowMonsterSpawn(worldSection.getBoolean("monsters.spawn", true));
-        this.setPrice(worldSection.getDouble("entryfee.amount", 0.0));
-        this.setCurrency(worldSection.getInt("entryfee.currency", -1));
-        this.setHunger(worldSection.getBoolean("hunger", true));
-        this.setHidden(worldSection.getBoolean("hidden", false));
-        this.getMobExceptions();
-
-        this.setGameMode(worldSection.get("gamemode", GameMode.SURVIVAL.toString()));
-
-        this.setKeepSpawnInMemory(worldSection.getBoolean("keepspawninmemory", true));
-
-        this.getWorldBlacklist().addAll(worldSection.getList("worldblacklist", new ArrayList<String>()));
-        this.translateTempSpawn(worldSection);
-        this.readSpawnFromConfig(this.getCBWorld());
-        this.canSave = true;
-        this.saveConfig();
-
-        this.permission = new Permission("multiverse.access." + this.getName(), "Allows access to " + this.getName(), PermissionDefault.OP);
-        this.exempt = new Permission("multiverse.exempt." + this.getName(), "A player who has this does not pay to enter this world, or use any MV portals in it " + this.getName(), PermissionDefault.OP);
-        try {
-            this.plugin.getServer().getPluginManager().addPermission(this.permission);
-            this.plugin.getServer().getPluginManager().addPermission(this.exempt);
-            addToUpperLists(this.permission);
-        } catch (IllegalArgumentException e) {
-            this.plugin.log(Level.FINER, "Permissions nodes were already added for " + this.name);
-        }
-    }
-
-    private double getDefaultScale(Environment environment) {
-        if (environment == Environment.NETHER) {
-            return 8.0;
-        }
-        return 1.0;
-    }
-
-    public void setEnableWeather(boolean weather) {
-        this.allowWeather = weather;
-        // Disable any current weather
-        if (!weather) {
-            this.getCBWorld().setStorm(false);
-            this.getCBWorld().setThundering(false);
-        }
-        this.worldSection.set("allowweather", weather);
-        saveConfig();
-    }
-
-    private void addToUpperLists(Permission permission) {
-        Permission all = this.plugin.getServer().getPluginManager().getPermission("multiverse.*");
-        Permission allWorlds = this.plugin.getServer().getPluginManager().getPermission("multiverse.access.*");
-        Permission allExemption = this.plugin.getServer().getPluginManager().getPermission("multiverse.exempt.*");
-
-        if (allWorlds == null) {
-            allWorlds = new Permission("multiverse.access.*");
-            this.plugin.getServer().getPluginManager().addPermission(allWorlds);
-        }
-        allWorlds.getChildren().put(permission.getName(), true);
-        if (allExemption == null) {
-            allExemption = new Permission("multiverse.exempt.*");
-            this.plugin.getServer().getPluginManager().addPermission(allExemption);
-        }
-        allExemption.getChildren().put(this.exempt.getName(), true);
-        if (all == null) {
-            all = new Permission("multiverse.*");
-            this.plugin.getServer().getPluginManager().addPermission(all);
-        }
-        all.getChildren().put("multiverse.access.*", true);
-        all.getChildren().put("multiverse.exempt.*", true);
-
-        this.plugin.getServer().getPluginManager().recalculatePermissionDefaults(all);
-        this.plugin.getServer().getPluginManager().recalculatePermissionDefaults(allWorlds);
-    }
-
-    private void translateTempSpawn(ConfigurationSection section) {
-        String tempspawn = section.getString("tempspawn", "");
-        if (tempspawn.length() > 0) {
-            String[] coordsString = tempspawn.split(":");
-            if (coordsString.length >= 3) {
-                int[] coords = new int[3];
-                try {
-                    for (int i = 0; i < 3; i++) {
-                        coords[i] = Integer.parseInt(coordsString[i]);
-                    }
-                    this.setSpawnLocation(new Location(this.getCBWorld(), coords[0], coords[1], coords[2]));
-                } catch (NumberFormatException e) {
-                    this.plugin.log(Level.WARNING, "A MV1 spawn value was found, but it could not be migrated. Format Error. Sorry.");
-                }
-            } else {
-                this.plugin.log(Level.WARNING, "A MV1 spawn value was found, but it could not be migrated. Format Error. Sorry.");
-            }
-
-            this.worldSection.set("tempspawn", null);
-        }
-    }
-
-    public String getColoredWorldString() {
-        if (this.getColor() == null) {
-            return this.getAlias() + ChatColor.WHITE;
-        }
-        return this.getColor() + this.getAlias() + ChatColor.WHITE;
-    }
-
-    private void getMobExceptions() {
-        List<String> temp;
-        temp = this.worldSection.getList("animals.exceptions", new ArrayList<String>());
-        // Add Animals to the exclusion list
-
-        for (String s : temp) {
-            this.masterList.get("animals").add(s.toUpperCase());
-        }
-        temp = this.worldSection.getList("monsters.exceptions", new ArrayList<String>());
-        // Add Monsters to the exclusion list
-        for (String s : temp) {
-            this.masterList.get("monsters").add(s.toUpperCase());
-        }
-    }
-
-    public World getCBWorld() {
-        return this.world;
-    }
-
-    private void initLists() {
-        this.masterList = new HashMap<String, List<String>>();
-        this.masterList.put("worldblacklist", new ArrayList<String>());
-        this.masterList.put("animals", new ArrayList<String>());
-        this.masterList.put("monsters", new ArrayList<String>());
-    }
-
-    @Override
-    public boolean clearVariable(String property) {
-        if (this.masterList.keySet().contains(property)) {
-            this.masterList.get(property).clear();
-        } else {
-            return false;
-        }
-        this.worldSection.set(property.toLowerCase(), new ArrayList<String>());
-        this.saveConfig();
-        return true;
-    }
-
-    @Override
-    public boolean addToVariable(String property, String value) {
-        if (this.masterList.keySet().contains(property)) {
-
-            if (property.equalsIgnoreCase("animals") || property.equalsIgnoreCase("monsters")) {
-                this.masterList.get(property).add(value.toUpperCase());
-                this.worldSection.set(property.toLowerCase() + ".exceptions", this.masterList.get(property));
-                this.syncMobs();
-            } else {
-                this.masterList.get(property).add(value);
-                this.worldSection.set(property.toLowerCase(), this.masterList.get(property));
-            }
-            saveConfig();
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    public boolean removeFromVariable(String property, String value) {
-        if (this.masterList.keySet().contains(property)) {
-
-            if (property.equalsIgnoreCase("animals") || property.equalsIgnoreCase("monsters")) {
-                this.masterList.get(property).remove(value.toUpperCase());
-                this.worldSection.set("" + property.toLowerCase() + ".exceptions", this.masterList.get(property));
-                this.syncMobs();
-            } else {
-                this.masterList.get(property).remove(value);
-                this.worldSection.set("" + property.toLowerCase(), this.masterList.get(property));
-            }
-            saveConfig();
-            return true;
-        }
-        return false;
-    }
-
-    /** Deprecated, use {@link #addToVariable(String, String)} now. */
-    @Deprecated
-    public boolean addToList(String list, String value) {
-        return this.addToVariable(list, value);
-    }
-
-    // Deprecated, use {@link #removeFromVariable(String, String)} now.
-    @Deprecated
-    public boolean removeFromList(String list, String value) {
-        return this.removeFromVariable(list, value);
-    }
-
-    private void syncMobs() {
-
-        if (this.getAnimalList().isEmpty()) {
-            this.world.setSpawnFlags(this.world.getAllowMonsters(), this.allowAnimals);
-        } else {
-            this.world.setSpawnFlags(this.world.getAllowMonsters(), true);
-        }
-        if (this.getMonsterList().isEmpty()) {
-            this.world.setSpawnFlags(this.allowMonsters, this.world.getAllowAnimals());
-        } else {
-            this.world.setSpawnFlags(true, this.world.getAllowAnimals());
-        }
-        this.plugin.getMVWorldManager().getWorldPurger().purgeWorld(null, this);
-    }
-
-    private boolean setVariable(String name, boolean value) {
-        if (name.equalsIgnoreCase("pvp")) {
-            this.setPVPMode(value);
-        } else if (name.equalsIgnoreCase("animals")) {
-            this.setAllowAnimalSpawn(value);
-        } else if (name.equalsIgnoreCase("monsters")) {
-            this.setAllowMonsterSpawn(value);
-        } else if (name.equalsIgnoreCase("memory") || name.equalsIgnoreCase("spawnmemory")) {
-            this.setKeepSpawnInMemory(value);
-        } else if ((name.equalsIgnoreCase("hunger")) || (name.equalsIgnoreCase("food"))) {
-            this.setHunger(value);
-        } else if (name.equalsIgnoreCase("weather") || name.equalsIgnoreCase("storm")) {
-            this.setEnableWeather(value);
-        } else if (name.equalsIgnoreCase("hidden")) {
-            this.setHidden(value);
-        } else {
-            return false;
-        }
-        return true;
-    }
-
-    @Override
-    public void setKeepSpawnInMemory(boolean value) {
-        this.world.setKeepSpawnInMemory(value);
-        this.keepSpawnInMemory = value;
-        this.worldSection.set("keepspawninmemory", value);
-        saveConfig();
-    }
-
-    @Override
-    public boolean setVariable(String name, String value) {
-        if (name.equalsIgnoreCase("diff") || name.equalsIgnoreCase("difficulty")) {
-            return this.setDifficulty(value);
-        }
-        if (name.equalsIgnoreCase("alias")) {
-            this.setAlias(value);
-            return true;
-        }
-        if (name.equalsIgnoreCase("respawn")) {
-            this.setRespawnToWorld(value);
-            return true;
-        }
-        if (name.equalsIgnoreCase("aliascolor") || name.equalsIgnoreCase("color")) {
-            return this.setColor(value);
-        }
-        if (name.equalsIgnoreCase("currency") || name.equalsIgnoreCase("curr")) {
-            try {
-                this.setCurrency(Integer.parseInt(value));
-                return true;
-            } catch (Exception e) {
-                return false;
-            }
-        }
-        if (name.equalsIgnoreCase("price")) {
-            try {
-                this.setPrice(Double.parseDouble(value));
-                return true;
-            } catch (Exception e) {
-                return false;
-            }
-        }
-        if (name.equalsIgnoreCase("scale") || name.equalsIgnoreCase("scaling")) {
-            try {
-                return this.setScaling(Double.parseDouble(value));
-            } catch (Exception e) {
-                return false;
-            }
-        }
-
-        if (name.equalsIgnoreCase("gamemode") || name.equalsIgnoreCase("mode")) {
-            try {
-                return this.setGameMode(GameMode.valueOf(value.toUpperCase()));
-            } catch (Exception e) {
-                return false;
-            }
-        }
-
-        try {
-            return this.setVariable(name, Boolean.parseBoolean(value));
-        } catch (Exception e) {
-            return false;
-        }
-    }
-
-    @Override
-    public Environment getEnvironment() {
-        return this.environment;
-    }
-
-    @Override
-    public void setEnvironment(Environment environment) {
-        this.environment = environment;
-    }
-
-    @Override
-    public Long getSeed() {
-        return this.seed;
-    }
-
-    @Override
-    public void setSeed(Long seed) {
-        this.seed = seed;
-    }
-
-    @Override
-    public String getName() {
-        return this.name;
-    }
-
-    @Override
-    public String getAlias() {
-        if (this.alias == null || this.alias.length() == 0) {
-            return this.name;
-        }
-        return this.alias;
-
-    }
-
-    @Override
-    public void setAlias(String alias) {
-        this.alias = alias;
-        this.worldSection.set("alias.name", alias);
-        saveConfig();
-    }
-
-    @Override
-    public boolean canAnimalsSpawn() {
-        return this.allowAnimals;
-    }
-
-    @Override
-    public void setAllowAnimalSpawn(boolean animals) {
-        this.allowAnimals = animals;
-        // If animals are a boolean, then we can turn them on or off on the server
-        // If there are ANY exceptions, there will be something spawning, so turn them on
-        this.worldSection.set("animals.spawn", animals);
-        saveConfig();
-        this.syncMobs();
-    }
-
-    @Override
-    public List<String> getAnimalList() {
-        return this.masterList.get("animals");
-    }
-
-    @Override
-    public boolean canMonstersSpawn() {
-        return this.allowMonsters;
-    }
-
-    @Override
-    public void setAllowMonsterSpawn(boolean monsters) {
-        this.allowMonsters = monsters;
-        // If monsters are a boolean, then we can turn them on or off on the server
-        // If there are ANY exceptions, there will be something spawning, so turn them on
-        this.worldSection.set("monsters.spawn", monsters);
-        saveConfig();
-        this.syncMobs();
-    }
-
-    @Override
-    public List<String> getMonsterList() {
-        return this.masterList.get("monsters");
-    }
-
-    @Override
-    public boolean isPVPEnabled() {
-        return this.pvp;
-    }
-
-    @Override
-    public void setPVPMode(boolean pvp) {
-        if (this.fakePVP) {
-            this.world.setPVP(true);
-        } else {
-            this.world.setPVP(pvp);
-        }
-        this.pvp = pvp;
-        this.worldSection.set("pvp", pvp);
-        saveConfig();
-    }
-
-    /**
-     * Gets whether or not this world will display in chat, mvw and mvl regardless if a user has the
-     * access permissions to go to this world.
-     *
-     * @return True if the world will be hidden, false if not.
-     */
-    @Override
-    public boolean isHidden() {
-        return this.isHidden;
-    }
-
-    /**
-     * Sets whether or not this world will display in chat, mvw and mvl regardless if a user has the
-     * access permissions to go to this world.
-     *
-     * @param hidden Set
-     */
-    @Override
-    public void setHidden(boolean hidden) {
-        this.isHidden = hidden;
-        this.worldSection.set("hidden", hidden);
-        saveConfig();
-    }
-
-    public void setFakePVPMode(Boolean fakePVPMode) {
-        this.fakePVP = fakePVPMode;
-        this.worldSection.set("fakepvp", this.fakePVP);
-        // Now that we've set PVP mode, make sure to go through the normal setting too!
-        // This method will perform the save for us to eliminate one write.
-        this.setPVPMode(this.pvp);
-    }
-
-    public List<String> getWorldBlacklist() {
-        return this.masterList.get("worldblacklist");
-    }
-
-    @Override
-    public double getScaling() {
-        return this.scaling;
-    }
-
-    @Override
-    public boolean setScaling(double scaling) {
-        boolean success = true;
-        if (scaling <= 0) {
-            // Disallow negative or 0 scalings.
-            scaling = 1.0;
-            this.plugin.log(Level.WARNING, "Someone tried to set a scale <= 0, defaulting to 1.");
-            success = false;
-        }
-        this.scaling = scaling;
-        this.worldSection.set("scale", scaling);
-        saveConfig();
-        return success;
-    }
-
-    @Override
-    public boolean setColor(String aliasColor) {
-        EnglishChatColor color = EnglishChatColor.fromString(aliasColor);
-        if (color == null) {
-            return false;
-        }
-        this.aliasColor = color.getColor();
-        this.worldSection.set("alias.color", color.getText());
-        saveConfig();
-        return true;
-    }
-
-    public boolean isValidAliasColor(String aliasColor) {
-        return (EnglishChatColor.fromString(aliasColor) != null);
-    }
-
-    @Override
-    public ChatColor getColor() {
-        return this.aliasColor;
-    }
-
-    public boolean clearList(String property) {
-        if (this.masterList.containsKey(property)) {
-            this.masterList.get(property).clear();
-            this.worldSection.set(property.toLowerCase(), this.masterList.get(property));
-            this.syncMobs();
-            saveConfig();
-            return true;
-        }
-        return false;
-    }
-
-    public boolean getFakePVP() {
-        return this.fakePVP;
-    }
-
-    @Override
-    public World getRespawnToWorld() {
-        if (this.respawnWorld == null) {
-            return null;
-        }
-        return (this.plugin.getServer().getWorld(this.respawnWorld));
-    }
-
-    @Override
-    public boolean setRespawnToWorld(String respawnToWorld) {
-        if (this.plugin.getServer().getWorld(respawnToWorld) != null) {
-            this.respawnWorld = respawnToWorld;
-            this.worldSection.set("respawnworld", respawnToWorld);
-            saveConfig();
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    public Permission getAccessPermission() {
-        return this.permission;
-    }
-
-    @Override
-    public int getCurrency() {
-        return this.currency;
-    }
-
-    @Override
-    public double getPrice() {
-        return this.price;
-    }
-
-    @Override
-    public void setCurrency(int currency) {
-        this.currency = currency;
-        this.worldSection.set("entryfee.currency", currency);
-        saveConfig();
-    }
-
-    @Override
-    public void setPrice(double price) {
-        this.price = price;
-        this.worldSection.set("entryfee.amount", price);
-        saveConfig();
-    }
-
-    /** This method really isn't needed */
-    @Deprecated
-    public boolean isExempt(Player p) {
-        return (this.plugin.getMVPerms().hasPermission(p, this.exempt.getName(), true));
-    }
-
-    @Override
-    public Permission getExemptPermission() {
-        return this.exempt;
-    }
-
-    private void saveConfig() {
-        if (this.canSave) {
-            try {
-                this.config.save(new File(this.plugin.getDataFolder(), "worlds.yml"));
-            } catch (IOException e) {
-                this.plugin.log(Level.SEVERE, "Could not save worlds.yml. Please check your filesystem permissions.");
-            }
-        }
-    }
-
-    @Override
-    public boolean setGameMode(String gameMode) {
-        GameMode mode;
-        try {
-            mode = GameMode.valueOf(gameMode.toUpperCase());
-        } catch (Exception e) {
-            try {
-                int modeInt = Integer.parseInt(gameMode);
-                mode = GameMode.getByValue(modeInt);
-
-            } catch (Exception e2) {
-                return false;
-            }
-        }
-        if (mode == null) {
-            return false;
-        }
-        this.setGameMode(mode);
-        this.worldSection.set("gamemode", mode.toString());
-        saveConfig();
-        return true;
-
-    }
-
-    /**
-     * FernFerret messed up and now config values could be in either string or Int
-     *
-     * @param mode The gamemode as an object.
-     *
-     * @return True if the mode was set, false if not.
-     */
-    private boolean setGameMode(Object mode) {
-        if (mode instanceof Integer) {
-            return this.setGameMode(GameMode.getByValue((Integer) mode));
-        }
-        try {
-            return this.setGameMode((String) mode);
-        } catch (ClassCastException e) {
-            return false;
-        }
-    }
-
-    private boolean setGameMode(GameMode mode) {
-
-        this.gameMode = mode;
-        this.worldSection.set("gamemode", this.gameMode.toString());
-        saveConfig();
-
-        if (MultiverseCore.EnforceGameModes) {
-            for (Player p : this.plugin.getServer().getWorld(this.getName()).getPlayers()) {
-                this.plugin.log(Level.FINER, "Setting " + p.getName() + "'s GameMode to " + this.gameMode.toString());
-                this.plugin.getPlayerListener().handleGameMode(p, this);
-            }
-        }
-        return true;
-    }
-
-    public GameMode getGameMode() {
-        return this.gameMode;
-    }
-
-    @Override
-    public boolean isWeatherEnabled() {
-        return this.allowWeather;
-    }
-
-    @Override
-    public boolean isKeepingSpawnInMemory() {
-        return this.keepSpawnInMemory;
-    }
-
-    @Override
-    public void setHunger(boolean hunger) {
-        this.hunger = hunger;
-        this.worldSection.set("hunger", this.hunger);
-        saveConfig();
-    }
-
-    @Override
-    public boolean getHunger() {
-        return this.hunger;
-    }
-
-    @Override
-    public void setSpawnLocation(Location l) {
-        this.getCBWorld().setSpawnLocation(l.getBlockX(), l.getBlockY(), l.getBlockZ());
-        this.worldSection.set("spawn.x", l.getX());
-        this.worldSection.set("spawn.y", l.getY());
-        this.worldSection.set("spawn.z", l.getZ());
-        this.worldSection.set("spawn.pitch", l.getPitch());
-        this.worldSection.set("spawn.yaw", l.getYaw());
-        this.getCBWorld().setSpawnLocation(l.getBlockX(), l.getBlockY(), l.getBlockZ());
-        this.spawnLocation = l.clone();
-        saveConfig();
-    }
-
-    private void readSpawnFromConfig(World w) {
-        double x = worldSection.getDouble("spawn.x", w.getSpawnLocation().getX());
-        double y = worldSection.getDouble("spawn.y", w.getSpawnLocation().getY());
-        double z = worldSection.getDouble("spawn.z", w.getSpawnLocation().getZ());
-        this.plugin.log(Level.FINE, "Read spawn from config as: " + x + ", " + y + ", " + z);
-        float pitch = (float) worldSection.getDouble("spawn.pitch", w.getSpawnLocation().getPitch());
-        float yaw = (float) worldSection.getDouble("spawn.yaw", w.getSpawnLocation().getYaw());
-
-        this.setSpawnLocation(new Location(w, x, y, z, yaw, pitch));
-        SafeTTeleporter teleporter = this.plugin.getTeleporter();
-        BlockSafety bs = new BlockSafety();
-        if (!bs.playerCanSpawnHereSafely(this.spawnLocation)) {
-            this.plugin.log(Level.WARNING, "Spawn location from world.dat file was unsafe. Adjusting...");
-            Location newSpawn = teleporter.getSafeLocation(this.spawnLocation, 128, 128);
-            // I think we could also do this, as I think this is what Notch does.
-            // Not sure how it will work in the nether...
-            //Location newSpawn = this.spawnLocation.getWorld().getHighestBlockAt(this.spawnLocation).getLocation();
-            if (newSpawn != null) {
-                this.plugin.log(Level.INFO, "New Spawn for '" + this.getName() + "' Located at: " + LocationManipulation.locationToString(newSpawn));
-                this.setSpawnLocation(newSpawn);
-            } else {
-                this.plugin.log(Level.SEVERE, "New safe spawn NOT found!!!");
-            }
-        }
-        this.plugin.log(Level.FINEST, "Spawn for '" + this.getName() + "' Located at: " + LocationManipulation.locationToString(this.getSpawnLocation()));
-    }
-
-    @Override
-    public Location getSpawnLocation() {
-        return this.spawnLocation;
-    }
-
-    @Override
-    public Difficulty getDifficulty() {
-        return this.getCBWorld().getDifficulty();
-    }
-
-    /**
-     * FernFerret messed up and now config values could be in either string or Int
-     *
-     * @param mode The gamemode as an object.
-     *
-     * @return True if the mode was set, false if not.
-     */
-    private boolean setDifficulty(Object mode) {
-        if (mode instanceof Integer) {
-            return this.setDifficulty(Difficulty.getByValue((Integer) mode));
-        }
-        try {
-            return this.setDifficulty((String) mode);
-        } catch (ClassCastException e) {
-            return false;
-        }
-    }
-
-    @Override
-    public boolean setDifficulty(String difficulty) {
-        Difficulty worlddiff;
-        try {
-            worlddiff = Difficulty.valueOf(difficulty.toUpperCase());
-        } catch (Exception e) {
-            try {
-                int diff = Integer.parseInt(difficulty);
-                worlddiff = Difficulty.getByValue(diff);
-
-            } catch (Exception e2) {
-                return false;
-            }
-        }
-        if (worlddiff == null) {
-            return false;
-        }
-        this.setDifficulty(worlddiff);
-        saveConfig();
-        return true;
-    }
-
-    private boolean setDifficulty(Difficulty diff) {
-        this.getCBWorld().setDifficulty(diff);
-        this.worldSection.set("difficulty", diff.toString());
-        saveConfig();
-        return true;
-    }
-
-    // TODO: Implment this, I'm going to bed tonight.
-    @Override
-    public boolean getAutoHeal() {
-        return true;
-    }
-
-    // TODO: Implment this, I'm going to bed tonight.
-    @Override
-    public void setAutoHeal(boolean heal) {
-
-    }
-}
@@ -0,0 +1,316 @@
+package com.onarandombox.MultiverseCore;
+
+import java.util.Map;
+
+import com.dumptruckman.minecraft.util.Logging;
+import com.onarandombox.MultiverseCore.api.MVConfig;
+import com.onarandombox.MultiverseCore.event.MVDebugModeEvent;
+import me.main__.util.SerializationConfig.NoSuchPropertyException;
+import me.main__.util.SerializationConfig.Property;
+import me.main__.util.SerializationConfig.SerializationConfig;
+import org.bukkit.Bukkit;
+
+/**
+ * Our configuration.
+ */
+public class MultiverseCoreConfiguration extends SerializationConfig implements MVConfig {
+    private static MultiverseCoreConfiguration instance;
+
+    /**
+     * Sets the statically saved instance.
+     * @param instance The new instance.
+     */
+    public static void setInstance(MultiverseCoreConfiguration instance) {
+        MultiverseCoreConfiguration.instance = instance;
+    }
+
+    /**
+     * @return True if the static instance of config is set.
+     */
+    public static boolean isSet() {
+        return instance != null;
+    }
+
+    /**
+     * Gets the statically saved instance.
+     * @return The statically saved instance.
+     */
+    @Deprecated
+    public static MultiverseCoreConfiguration getInstance() {
+        if (instance == null)
+            throw new IllegalStateException("The instance wasn't set!");
+        return instance;
+    }
+
+    @Property
+    private volatile boolean enforceaccess;
+    @Property
+    private volatile boolean prefixchat;
+    @Property
+    private volatile String prefixchatformat;
+    @Property
+    private volatile boolean teleportintercept;
+    @Property
+    private volatile boolean firstspawnoverride;
+    @Property
+    private volatile boolean displaypermerrors;
+    @Property
+    private volatile int globaldebug;
+    @Property
+    private volatile boolean silentstart;
+    @Property
+    private volatile double version;
+    @Property
+    private volatile String firstspawnworld;
+    @Property
+    private volatile boolean defaultportalsearch;
+    @Property
+    private volatile int portalsearchradius;
+    @Property
+    private volatile boolean autopurge;
+    @Property
+    private volatile boolean idonotwanttodonate;
+
+    public MultiverseCoreConfiguration() {
+        super();
+        MultiverseCoreConfiguration.setInstance(this);
+    }
+
+    public MultiverseCoreConfiguration(Map<String, Object> values) {
+        super(values);
+        MultiverseCoreConfiguration.setInstance(this);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void setDefaults() {
+        // BEGIN CHECKSTYLE-SUPPRESSION: MagicNumberCheck
+        enforceaccess = false;
+        prefixchat = false;
+        prefixchatformat = "[%world%]%chat%";
+        teleportintercept = true;
+        firstspawnoverride = true;
+        displaypermerrors = true;
+        globaldebug = 0;
+        this.version = 2.9;
+        silentstart = false;
+        defaultportalsearch = true;
+        portalsearchradius = 128;
+        autopurge = true;
+        idonotwanttodonate = false;
+        // END CHECKSTYLE-SUPPRESSION: MagicNumberCheck
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean setConfigProperty(String property, String value) {
+        try {
+            return this.setProperty(property, value, true);
+        } catch (NoSuchPropertyException e) {
+            return false;
+        }
+    }
+
+    // And here we go:
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean getEnforceAccess() {
+        return this.enforceaccess;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setEnforceAccess(boolean enforceAccess) {
+        this.enforceaccess = enforceAccess;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean getPrefixChat() {
+        return this.prefixchat;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setPrefixChat(boolean prefixChat) {
+        this.prefixchat = prefixChat;
+    }
+    
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getPrefixChatFormat() {
+        return this.prefixchatformat;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setPrefixChatFormat(String prefixChatFormat) {
+        this.prefixchatformat = prefixChatFormat;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean getTeleportIntercept() {
+        return this.teleportintercept;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setTeleportIntercept(boolean teleportIntercept) {
+        this.teleportintercept = teleportIntercept;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean getFirstSpawnOverride() {
+        return this.firstspawnoverride;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setFirstSpawnOverride(boolean firstSpawnOverride) {
+        this.firstspawnoverride = firstSpawnOverride;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean getDisplayPermErrors() {
+        return this.displaypermerrors;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setDisplayPermErrors(boolean displayPermErrors) {
+        this.displaypermerrors = displayPermErrors;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int getGlobalDebug() {
+        return this.globaldebug;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setGlobalDebug(int globalDebug) {
+        this.globaldebug = globalDebug;
+        Logging.setDebugLevel(globalDebug);
+        Bukkit.getPluginManager().callEvent(new MVDebugModeEvent(globalDebug));
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public double getVersion() {
+        return this.version;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setVersion(int version) {
+        this.version = version;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getFirstSpawnWorld() {
+        return this.firstspawnworld;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setFirstSpawnWorld(String firstSpawnWorld) {
+        this.firstspawnworld = firstSpawnWorld;
+    }
+
+    @Override
+    public void setSilentStart(boolean silentStart) {
+        Logging.setShowingConfig(!silentStart);
+        this.silentstart = silentStart;
+    }
+
+    @Override
+    public boolean getSilentStart() {
+        return silentstart;
+    }
+
+    @Override
+    public void setUseDefaultPortalSearch(boolean useDefaultPortalSearch) {
+        defaultportalsearch = useDefaultPortalSearch;
+    }
+
+    @Override
+    public boolean isUsingDefaultPortalSearch() {
+        return defaultportalsearch;
+    }
+
+    @Override
+    public void setPortalSearchRadius(int searchRadius) {
+        this.portalsearchradius = searchRadius;
+    }
+
+    @Override
+    public int getPortalSearchRadius() {
+        return portalsearchradius;
+    }
+
+    @Override
+    public boolean isAutoPurgeEnabled() {
+        return autopurge;
+    }
+
+    @Override
+    public void setAutoPurgeEnabled(boolean autopurge) {
+        this.autopurge = autopurge;
+    }
+
+    @Override
+    public boolean isShowingDonateMessage() {
+        return !idonotwanttodonate;
+    }
+
+    @Override
+    public void setShowDonateMessage(boolean showDonateMessage) {
+        this.idonotwanttodonate = !showDonateMessage;
+    }
+}
@@ -0,0 +1,172 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.anchor;
+
+import com.dumptruckman.minecraft.util.Logging;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import org.bukkit.Location;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.logging.Level;
+
+/**
+ * Manages anchors.
+ */
+public class AnchorManager {
+    private MultiverseCore plugin;
+    private Map<String, Location> anchors;
+    private FileConfiguration anchorConfig;
+
+    public AnchorManager(MultiverseCore plugin) {
+        this.plugin = plugin;
+        this.anchors = new HashMap<String, Location>();
+    }
+
+    /**
+     * Loads all anchors.
+     */
+    public void loadAnchors() {
+        this.anchors = new HashMap<String, Location>();
+        this.anchorConfig = YamlConfiguration.loadConfiguration(new File(this.plugin.getDataFolder(), "anchors.yml"));
+        this.ensureConfigIsPrepared();
+        ConfigurationSection anchorsSection = this.anchorConfig.getConfigurationSection("anchors");
+        Set<String> anchorKeys = anchorsSection.getKeys(false);
+        for (String key : anchorKeys) {
+            //world:x,y,z:pitch:yaw
+            Location anchorLocation = plugin.getLocationManipulation().stringToLocation(anchorsSection.getString(key, ""));
+            if (anchorLocation != null) {
+                Logging.config("Loading anchor:  '%s'...", key);
+                this.anchors.put(key, anchorLocation);
+            } else {
+                Logging.warning("The location for anchor '%s' is INVALID.", key);
+            }
+
+        }
+    }
+
+    private void ensureConfigIsPrepared() {
+        if (this.anchorConfig.getConfigurationSection("anchors") == null) {
+            this.anchorConfig.createSection("anchors");
+        }
+    }
+
+    /**
+     * Saves all anchors.
+     * @return True if all anchors were successfully saved.
+     */
+    public boolean saveAnchors() {
+        try {
+            this.anchorConfig.save(new File(this.plugin.getDataFolder(), "anchors.yml"));
+            return true;
+        } catch (IOException e) {
+            Logging.severe("Failed to save anchors.yml. Please check your file permissions.");
+            return false;
+        }
+    }
+
+    /**
+     * Gets the {@link Location} associated with an anchor.
+     * @param anchor The name of the anchor.
+     * @return The {@link Location}.
+     */
+    public Location getAnchorLocation(String anchor) {
+        if (this.anchors.containsKey(anchor)) {
+            return this.anchors.get(anchor);
+        }
+        return null;
+    }
+
+    /**
+     * Saves an anchor.
+     * @param anchor The name of the anchor.
+     * @param location The location of the anchor as string.
+     * @return True if the anchor was successfully saved.
+     */
+    public boolean saveAnchorLocation(String anchor, String location) {
+        Location parsed = plugin.getLocationManipulation().stringToLocation(location);
+        return parsed != null && this.saveAnchorLocation(anchor, parsed);
+    }
+
+    /**
+     * Saves an anchor.
+     * @param anchor The name of the anchor.
+     * @param l The {@link Location} of the anchor.
+     * @return True if the anchor was successfully saved.
+     */
+    public boolean saveAnchorLocation(String anchor, Location l) {
+        if (l == null) {
+            return false;
+        }
+        this.anchorConfig.set("anchors." + anchor, plugin.getLocationManipulation().locationToString(l));
+        this.anchors.put(anchor, l);
+        return this.saveAnchors();
+    }
+
+    /**
+     * Gets all anchors.
+     * @return An unmodifiable {@link Set} containing all anchors.
+     */
+    public Set<String> getAllAnchors() {
+        return Collections.unmodifiableSet(this.anchors.keySet());
+    }
+
+    /**
+     * Gets all anchors that the specified {@link Player} can access.
+     * @param p The {@link Player}.
+     * @return An unmodifiable {@link Set} containing all anchors the specified {@link Player} can access.
+     */
+    public Set<String> getAnchors(Player p) {
+        if (p == null) {
+            return this.anchors.keySet();
+        }
+        Set<String> myAnchors = new HashSet<String>();
+        for (String anchor : this.anchors.keySet()) {
+            Location ancLoc = this.anchors.get(anchor);
+            if (ancLoc == null) {
+                continue;
+            }
+            String worldPerm = "multiverse.access." + ancLoc.getWorld().getName();
+            // Add to the list if we're not enforcing access
+            // OR
+            // We are enforcing access and the user has the permission.
+            if (!this.plugin.getMVConfig().getEnforceAccess() ||
+                    (this.plugin.getMVConfig().getEnforceAccess() && p.hasPermission(worldPerm))) {
+                myAnchors.add(anchor);
+            } else {
+                Logging.finer(String.format("Not adding anchor %s to the list, user %s doesn't have the %s " +
+                        "permission and 'enforceaccess' is enabled!",
+                        anchor, p.getName(), worldPerm));
+            }
+        }
+        return Collections.unmodifiableSet(myAnchors);
+    }
+
+    /**
+     * Deletes the specified anchor.
+     * @param s The name of the anchor.
+     * @return True if the anchor was successfully deleted.
+     */
+    public boolean deleteAnchor(String s) {
+        if (this.anchors.containsKey(s)) {
+            this.anchors.remove(s);
+            this.anchorConfig.set("anchors." + s, null);
+            return this.saveAnchors();
+        }
+        return false;
+    }
+}
@@ -0,0 +1,4 @@
+/**
+ * this package contains the classes that are used for the anchor system.
+ */
+package com.onarandombox.MultiverseCore.anchor;
@@ -0,0 +1,79 @@
+package com.onarandombox.MultiverseCore.api;
+
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.entity.Minecart;
+import org.bukkit.entity.Vehicle;
+
+/**
+ * Used to get block/location-related information.
+ */
+public interface BlockSafety {
+    /**
+     * This function checks whether the block at the given coordinates are above air or not.
+     * @param l The {@link Location} of the block.
+     * @return True if the block at that {@link Location} is above air.
+     */
+    boolean isBlockAboveAir(Location l);
+
+    /**
+     * Checks if a player can spawn safely at the given coordinates.
+     * @param world The {@link World}.
+     * @param x The x-coordinate.
+     * @param y The y-coordinate.
+     * @param z The z-coordinate.
+     * @return True if a player can spawn safely at the given coordinates.
+     */
+    boolean playerCanSpawnHereSafely(World world, double x, double y, double z);
+
+    /**
+     * This function checks whether the block at the coordinates given is safe or not by checking for Lava/Fire/Air
+     * etc. This also ensures there is enough space for a player to spawn!
+     *
+     * @param l The {@link Location}
+     * @return Whether the player can spawn safely at the given {@link Location}
+     */
+    boolean playerCanSpawnHereSafely(Location l);
+
+    /**
+     * Gets a safe bed spawn location OR null if the bed is invalid.
+     * @param l The location of the bead head (block with the pillow on it).
+     * @return Safe location around the bed or null if no location was found.
+     */
+    Location getSafeBedSpawn(Location l);
+
+    /**
+     * Gets the location of the top block at the specified {@link Location}.
+     * @param l Any {@link Location}.
+     * @return The {@link Location} of the top-block.
+     */
+    Location getTopBlock(Location l);
+
+    /**
+     * Gets the location of the top block at the specified {@link Location}.
+     * @param l Any {@link Location}.
+     * @return The {@link Location} of the top-block.
+     */
+    Location getBottomBlock(Location l);
+
+    /**
+     * Checks if an entity would be on track at the specified {@link Location}.
+     * @param l The {@link Location}.
+     * @return True if an entity would be on tracks at the specified {@link Location}.
+     */
+    boolean isEntitiyOnTrack(Location l);
+
+    /**
+     * Checks if the specified {@link Minecart} can spawn safely.
+     * @param cart The {@link Minecart}.
+     * @return True if the minecart can spawn safely.
+     */
+    boolean canSpawnCartSafely(Minecart cart);
+
+    /**
+     * Checks if the specified {@link Vehicle} can spawn safely.
+     * @param vehicle The {@link Vehicle}.
+     * @return True if the vehicle can spawn safely.
+     */
+    boolean canSpawnVehicleSafely(Vehicle vehicle);
+}
@@ -1,101 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.api;
-
-import com.fernferret.allpay.GenericBank;
-import com.onarandombox.MultiverseCore.destination.DestinationFactory;
-import com.onarandombox.MultiverseCore.utils.*;
-import com.pneumaticraft.commandhandler.CommandHandler;
-import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.entity.Player;
-
-/**
- * Multiverse 2 Core API
- * <p/>
- * This API contains a bunch of useful things you can get out of Multiverse in general!
- */
-public interface Core {
-
-    /**
-     * Gets the Multiverse config file.
-     *
-     * @return The Multiverse config file.
-     */
-    public FileConfiguration getMVConfiguration();
-
-    /**
-     * Gets the Banking system that Multiverse-Core has hooked into.
-     *
-     * @return A {@link GenericBank} that can be used for payments.
-     */
-    public GenericBank getBank();
-
-    /**
-     * Reloads the Multiverse Configuration files:
-     * worlds.yml and config.yml.
-     */
-    public void loadConfigs();
-
-    /**
-     * Gets the Multiverse message system. This allows you to send messages
-     * to users at specified intervals.
-     *
-     * @return The loaded {@link MVMessaging}.
-     */
-    public MVMessaging getMessaging();
-
-    /**
-     * Gets the {@link MVPlayerSession} for the given player.
-     * This will also create a player session if one does not exist
-     * for a player.
-     *
-     * @param player The player's session to grab.
-     *
-     * @return The corresponding {@link MVPlayerSession}.
-     */
-    public MVPlayerSession getPlayerSession(Player player);
-
-    /**
-     * Gets the instantiated Safe-T-Teleporter for performing
-     * safe teleports.
-     *
-     * @return A non-null {@link SafeTTeleporter}.
-     */
-    public SafeTTeleporter getTeleporter();
-
-    /**
-     * Multiverse uses an advanced permissions setup, this object
-     * simplifies getting/setting permissions.
-     *
-     * @return A non-null {@link MVPermissions}.
-     */
-    public MVPermissions getMVPerms();
-
-    /**
-     * Multiverse uses {@link CommandHandler} to make adding and using commands
-     * a piece of cake.
-     *
-     * @return A non-null {@link CommandHandler}.
-     */
-    public CommandHandler getCommandHandler();
-
-    /**
-     * Gets the factory class responsible for loading many different destinations
-     * on demand.
-     *
-     * @return A valid {@link DestinationFactory}.
-     */
-    public DestinationFactory getDestFactory();
-
-    /**
-     * Gets the primary class responsible for managing Multiverse Worlds.
-     *
-     * @return {@link WorldManager}.
-     */
-    public WorldManager getMVWorldManager();
-}
@@ -0,0 +1,56 @@
+package com.onarandombox.MultiverseCore.api;
+
+import java.util.Collection;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public interface Destination<T extends DestinationInstance> {
+    /**
+     * Returns the identifier or prefix that is required for this destination.
+     *
+     * <p>Portals have a prefix of "p" for example and OpenWarp (third party plugin) uses "ow". This is derived from a
+     * hash and cannot have duplicate values. Read that as your plugin cannot use 'p' because it's already used.
+     * Please check the wiki when adding a custom destination!</p>
+     *
+     * @return The identifier or prefix that is required for this destination.
+     */
+    @NotNull String getIdentifier();
+
+    /**
+     * Returns the destination instance for the given destination parameters.
+     *
+     * @param destinationParams The destination parameters. ex: p:MyPortal:nw
+     * @return The destination instance, or null if the destination parameters are invalid.
+     */
+    @Nullable T getDestinationInstance(@Nullable String destinationParams);
+
+    /**
+     * Returns a list of possible destinations for the given destination parameters.
+     *
+     * @param issuer            The command issuer.
+     * @param destinationParams The destination parameters. ex: p:MyPortal:nw
+     * @return A list of possible destinations.
+     */
+    @NotNull Collection<String> suggestDestinations(@NotNull BukkitCommandIssuer issuer, @Nullable String destinationParams);
+
+    /**
+     * Should the Multiverse SafeTeleporter be used?
+     *
+     * <p>If not, MV will blindly take people to the location specified.</p>
+     *
+     * @return True if the SafeTeleporter will be used, false if not.
+     */
+    boolean checkTeleportSafety();
+
+    /**
+     * Returns the teleporter to use for this destination.
+     *
+     * <p>By default, Multiverse will automatically use SafeTeleporter. If you want to use a different teleporter, you can
+     * override this method.</p>
+     *
+     * @return The custom teleporter to use for this destination. Return null to use the default teleporter.
+     */
+    @Nullable Teleporter getTeleporter();
+}
@@ -0,0 +1,45 @@
+package com.onarandombox.MultiverseCore.api;
+
+import org.bukkit.Location;
+import org.bukkit.entity.Entity;
+import org.bukkit.util.Vector;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public interface DestinationInstance {
+    /**
+     * Gets the exact location to teleport an entity to.
+     *
+     * @param teleportee The entity to teleport.
+     * @return The location to teleport to.
+     */
+    @Nullable Location getLocation(@NotNull Entity teleportee);
+
+    /**
+     * Gets the velocity to apply to an entity after teleporting.
+     *
+     * @param teleportee The entity to teleport.
+     * @return A vector representing the speed/direction the player should travel when arriving at the destination.
+     */
+    @Nullable Vector getVelocity(@NotNull Entity teleportee);
+
+    /**
+     * Gets the permission suffix to check for when teleporting to this destination.
+     * This is used for finer per world/player permissions, such as "multiverse.teleport.self.worldname".
+     *
+     * <p>For example, if the destination is "w:world", the permission suffix is "world".</p>
+     *
+     * @return The permission suffix.
+     */
+    @Nullable String getFinerPermissionSuffix();
+
+    /**
+     * Serialises the destination instance to a savable string.
+     *
+     * <p>This is used when plugins save destinations to configuration,
+     * and when the destination is displayed to the user.</p>
+     *
+     * @return The serialised destination instance.
+     */
+    @NotNull String serialise();
+}
@@ -1,17 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.api;
-
-public interface FancyText {
-    /**
-     * TODO: Write something useful here.
-     *
-     * @return And Here.
-     */
-    public String getFancyText();
-}
@@ -0,0 +1,99 @@
+package com.onarandombox.MultiverseCore.api;
+
+import org.bukkit.Location;
+import org.bukkit.entity.Vehicle;
+import org.bukkit.util.Vector;
+
+/**
+ * Used to manipulate locations.
+ */
+public interface LocationManipulation {
+    /**
+     * Convert a Location into a Colon separated string to allow us to store it in text.
+     * <p>
+     * WORLD:X,Y,Z:yaw:pitch
+     * <p>
+     * The corresponding String2Loc function is {@link #stringToLocation}
+     *
+     * @param location The Location to save.
+     * @return The location as a string in this format: WORLD:x,y,z:yaw:pitch
+     */
+    String locationToString(Location location);
+
+    /**
+     * This method simply does some rounding, rather than forcing a call to the server to get the blockdata.
+     *
+     * @param l The location to round to the block location
+     * @return A rounded location.
+     */
+    Location getBlockLocation(Location l);
+
+    /**
+     * Returns a new location from a given string. The format is as follows:
+     * <p>
+     * WORLD:X,Y,Z:yaw:pitch
+     * <p>
+     * The corresponding Location2String function is {@link #stringToLocation}
+     *
+     * @param locationString The location represented as a string (WORLD:X,Y,Z:yaw:pitch)
+     * @return A new location defined by the string or null if the string was invalid.
+     */
+    Location stringToLocation(String locationString);
+
+    /**
+     * Returns a colored string with the coords.
+     *
+     * @param l The {@link Location}
+     * @return The {@link String}
+     */
+    String strCoords(Location l);
+
+    /**
+     * Converts a location to a printable readable formatted string including pitch/yaw.
+     *
+     * @param l The {@link Location}
+     * @return The {@link String}
+     */
+    String strCoordsRaw(Location l);
+
+    /**
+     * Return the NESW Direction a Location is facing.
+     *
+     * @param location The {@link Location}
+     * @return The NESW Direction
+     */
+    String getDirection(Location location);
+
+    /**
+     * Returns the float yaw position for the given cardinal direction.
+     *
+     * @param orientation The cardinal direction
+     * @return The yaw
+     */
+    float getYaw(String orientation);
+
+    /**
+     * Returns a speed float from a given vector.
+     *
+     * @param v The {@link Vector}
+     * @return The speed
+     */
+    float getSpeed(Vector v);
+
+    /**
+     * Returns a translated vector from the given direction.
+     *
+     * @param v The old {@link Vector}
+     * @param direction The new direction
+     * @return The translated {@link Vector}
+     */
+    Vector getTranslatedVector(Vector v, String direction);
+
+    /**
+     * Returns the next Location that a {@link Vehicle} is traveling at.
+     *
+     * @param v The {@link Vehicle}
+     * @return The {@link Location}
+     */
+    Location getNextBlock(Vehicle v);
+}
@@ -1,30 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.api;
-
-import org.bukkit.Server;
-
-import java.util.logging.Level;
-
-/** A simple API to require plugins to have a log method. */
-public interface LoggablePlugin {
-    /**
-     * Logs a message at the specified level.
-     *
-     * @param level The severity of the log.
-     * @param msg   The message to log.
-     */
-    public void log(Level level, String msg);
-
-    /**
-     * Gets the server instance that this plugin is attached to.
-     *
-     * @return A {@link Server} instance.
-     */
-    public Server getServer();
-}
@@ -0,0 +1,194 @@
+package com.onarandombox.MultiverseCore.api;
+
+import org.bukkit.configuration.serialization.ConfigurationSerializable;
+
+/**
+ * The configuration of MultiverseCore.
+ */
+public interface MVConfig extends ConfigurationSerializable {
+    /**
+     * Sets a property using a {@link String}.
+     * @param property The name of the property.
+     * @param value The value.
+     * @return True on success, false if the operation failed.
+     */
+    boolean setConfigProperty(String property, String value);
+
+    /**
+     * Sets firstSpawnWorld.
+     * @param firstSpawnWorld The new value.
+     */
+    void setFirstSpawnWorld(String firstSpawnWorld);
+
+    /**
+     * Gets firstSpawnWorld.
+     * @return firstSpawnWorld.
+     */
+    String getFirstSpawnWorld();
+
+    /**
+     * Sets version.
+     * @param version The new value.
+     */
+    void setVersion(int version);
+
+    /**
+     * Gets version.
+     * @return version.
+     */
+    double getVersion();
+
+    /**
+     * Sets globalDebug.
+     * @param globalDebug The new value.
+     */
+    void setGlobalDebug(int globalDebug);
+
+    /**
+     * Gets globalDebug.
+     * @return globalDebug.
+     */
+    int getGlobalDebug();
+
+    /**
+     * Sets displayPermErrors.
+     * @param displayPermErrors The new value.
+     */
+    void setDisplayPermErrors(boolean displayPermErrors);
+
+    /**
+     * Gets displayPermErrors.
+     * @return displayPermErrors.
+     */
+    boolean getDisplayPermErrors();
+
+    /**
+     * Sets firstSpawnOverride.
+     * @param firstSpawnOverride The new value.
+     */
+    void setFirstSpawnOverride(boolean firstSpawnOverride);
+
+    /**
+     * Gets firstSpawnOverride.
+     * @return firstSpawnOverride.
+     */
+    boolean getFirstSpawnOverride();
+
+    /**
+     * Sets teleportIntercept.
+     * @param teleportIntercept The new value.
+     */
+    void setTeleportIntercept(boolean teleportIntercept);
+
+    /**
+     * Gets teleportIntercept.
+     * @return teleportIntercept.
+     */
+    boolean getTeleportIntercept();
+
+    /**
+     * Sets prefixChat.
+     * @param prefixChat The new value.
+     */
+    void setPrefixChat(boolean prefixChat);
+
+    /**
+     * Gets prefixChat.
+     * @return prefixChat.
+     */
+    boolean getPrefixChat();
+    
+    /**
+     * Sets prefixChatFormat.
+     * @param prefixChatFormat The new value.
+     */
+    void setPrefixChatFormat(String prefixChatFormat);
+
+    /**
+     * Gets prefixChatFormat.
+     * @return prefixChatFormat.
+     */
+    String getPrefixChatFormat();
+
+    /**
+     * Sets enforceAccess.
+     * @param enforceAccess The new value.
+     */
+    void setEnforceAccess(boolean enforceAccess);
+
+    /**
+     * Gets enforceAccess.
+     * @return enforceAccess.
+     */
+    boolean getEnforceAccess();
+
+    /**
+     * Sets whether to suppress startup messages.
+     *
+     * @param silentStart true to suppress messages.
+     */
+    void setSilentStart(boolean silentStart);
+
+    /**
+     * Whether we are suppressing startup messages.
+     *
+     * @return true if we are suppressing startup messages.
+     */
+    boolean getSilentStart();
+
+    /**
+     * Sets whether or not to let Bukkit determine portal search radius on its own or if Multiverse should give input.
+     *
+     * @param useDefaultPortalSearch True to let Bukkit determine portal search radius on its own.
+     */
+    void setUseDefaultPortalSearch(boolean useDefaultPortalSearch);
+
+    /**
+     * Gets whether or not Bukkit will be determining portal search radius on its own or if Multiverse should help.
+     *
+     * @return True means Bukkit will use its own default values.
+     */
+    boolean isUsingDefaultPortalSearch();
+
+    /**
+     * Sets the radius at which vanilla style portals will be searched for to connect to worlds together.
+     *
+     * @param searchRadius The portal search radius.
+     */
+    void setPortalSearchRadius(int searchRadius);
+
+    /**
+     * Gets the radius at which vanilla style portals will be searched for to connect to worlds together.
+     *
+     * @return The portal search radius.
+     */
+    int getPortalSearchRadius();
+
+    /**
+     * Gets whether or not the automatic purge of entities is enabled.
+     *
+     * @return True if automatic purge is enabled.
+     */
+    boolean isAutoPurgeEnabled();
+
+    /**
+     * Sets whether or not the automatic purge of entities is enabled.
+     *
+     * @param autopurge True if automatic purge should be enabled.
+     */
+    void setAutoPurgeEnabled(boolean autopurge);
+
+    /**
+     * Gets whether or not the donation/patreon messages are shown.
+     *
+     * @return True if donation/patreon messages should be shown.
+     */
+    boolean isShowingDonateMessage();
+
+    /**
+     * Sets whether or not the donation/patreon messages are shown.
+     *
+     * @param idonotwanttodonate True if donation/patreon messages should be shown.
+     */
+    void setShowDonateMessage(boolean idonotwanttodonate);
+}
@@ -0,0 +1,169 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.api;
+
+import com.onarandombox.MultiverseCore.anchor.AnchorManager;
+import com.onarandombox.MultiverseCore.commandtools.MVCommandManager;
+import com.onarandombox.MultiverseCore.destination.DestinationsProvider;
+import com.onarandombox.MultiverseCore.economy.MVEconomist;
+import com.onarandombox.MultiverseCore.teleportation.SimpleBlockSafety;
+import com.onarandombox.MultiverseCore.teleportation.SimpleLocationManipulation;
+import com.onarandombox.MultiverseCore.teleportation.SimpleSafeTTeleporter;
+import com.onarandombox.MultiverseCore.utils.MVPermissions;
+import com.onarandombox.MultiverseCore.utils.UnsafeCallWrapper;
+
+/**
+ * Multiverse 2 Core API
+ * <p>
+ * This API contains a bunch of useful things you can get out of Multiverse in general!
+ */
+public interface MVCore extends MVPlugin {
+    /**
+     * Retrieves Multiverse's friendly economist. The economist can be used for dealing with economies without
+     * worrying about any of the messy details.
+     *
+     * @return the economy manager for Multiverse.
+     */
+    MVEconomist getEconomist();
+
+    /**
+     * Reloads the Multiverse Configuration files:
+     * worlds.yml and config.yml.
+     */
+    void loadConfigs();
+
+    /**
+     * Gets the {@link UnsafeCallWrapper} class.
+     *
+     * @return A non-null {@link UnsafeCallWrapper}.
+     */
+    UnsafeCallWrapper getUnsafeCallWrapper();
+
+    /**
+     * Multiverse uses an advanced permissions setup, this object
+     * simplifies getting/setting permissions.
+     *
+     * @return A non-null {@link MVPermissions}.
+     */
+    MVPermissions getMVPerms();
+
+    /**
+     * Multiverse uses {@link MVCommandManager} to make adding and using commands
+     * a piece of cake.
+     *
+     * @return A non-null {@link MVCommandManager}.
+     */
+    MVCommandManager getMVCommandManager();
+
+    /**
+     * Gets the class responsible for loading many different destinations
+     * on demand.
+     *
+     * @return A valid {@link DestinationsProvider}.
+     */
+    DestinationsProvider getDestinationsProvider();
+
+    /**
+     * Gets the primary class responsible for managing Multiverse Worlds.
+     *
+     * @return {@link MVWorldManager}.
+     */
+    MVWorldManager getMVWorldManager();
+
+    /**
+     * Saves the Multiverse-Config.
+     *
+     * @return Whether the Multiverse-Config was successfully saved
+     */
+    boolean saveMVConfig();
+
+    /**
+     * Saves all configs.
+     *
+     * @return Whether the config was successfully saved
+     */
+    boolean saveAllConfigs();
+
+    /**
+     * Gets the {@link AnchorManager}.
+     *
+     * @return The {@link AnchorManager}
+     */
+    AnchorManager getAnchorManager();
+
+    /**
+     * Decrements the number of plugins that have specifically hooked into core.
+     */
+    void decrementPluginCount();
+
+    /**
+     * Increments the number of plugins that have specifically hooked into core.
+     */
+    void incrementPluginCount();
+
+    /**
+     * Returns the number of plugins that have specifically hooked into core.
+     *
+     * @return The number if plugins that have hooked into core.
+     */
+    int getPluginCount();
+
+    /**
+     * Gets the {@link BlockSafety} this {@link MVCore} is using.
+     * @return The {@link BlockSafety} this {@link MVCore} is using.
+     * @see BlockSafety
+     * @see SimpleBlockSafety
+     */
+    BlockSafety getBlockSafety();
+
+    /**
+     * Sets the {@link BlockSafety} this {@link MVCore} is using.
+     * @param blockSafety The new {@link BlockSafety}.
+     * @see BlockSafety
+     * @see SimpleBlockSafety
+     */
+    void setBlockSafety(BlockSafety blockSafety);
+
+    /**
+     * Gets the {@link LocationManipulation} this {@link MVCore} is using.
+     * @return The {@link LocationManipulation} this {@link MVCore} is using.
+     * @see LocationManipulation
+     * @see SimpleLocationManipulation
+     */
+    LocationManipulation getLocationManipulation();
+
+    /**
+     * Sets the {@link LocationManipulation} this {@link MVCore} is using.
+     * @param locationManipulation The new {@link LocationManipulation}.
+     * @see LocationManipulation
+     * @see SimpleLocationManipulation
+     */
+    void setLocationManipulation(LocationManipulation locationManipulation);
+
+    /**
+     * Gets the {@link SafeTTeleporter} this {@link MVCore} is using.
+     * @return The {@link SafeTTeleporter} this {@link MVCore} is using.
+     * @see SafeTTeleporter
+     * @see SimpleSafeTTeleporter
+     */
+    SafeTTeleporter getSafeTTeleporter();
+
+    /**
+     * Sets the {@link SafeTTeleporter} this {@link MVCore} is using.
+     * @param safeTTeleporter The new {@link SafeTTeleporter}.
+     * @see SafeTTeleporter
+     * @see SimpleSafeTTeleporter
+     */
+    void setSafeTTeleporter(SafeTTeleporter safeTTeleporter);
+
+    /**
+     * Gets the {@link MVConfig}.
+     * @return The configuration.
+     */
+    MVConfig getMVConfig();
+}
@@ -15,24 +15,23 @@ import org.bukkit.util.Vector;
 /**
 * A destination API for Multiverse
 * Any plugin can add these to MV and when they are, any action that uses them (portals, MVTP, etc.) can use them!
- *
- * @author fernferret
 */
+@Deprecated
 public interface MVDestination {
    /**
     * Returns the identifier or prefix that is required for this destination.
-     * <p/>
+     * <p>
     * Portals have a prefix of "p" for example and OpenWarp (third party plugin) uses "ow". This is derived from a
     * hash and cannot have duplicate values. Read that as your plugin cannot use 'p' because it's already used.
     * Please check the wiki when adding a custom destination!
     *
     * @return The identifier or prefix that is required for this destination.
     */
-    public String getIdentifier();
+    String getIdentifier();

    /**
     * Allows you to determine if a Destination is valid for the type it thinks it is.
-     * <p/>
+     * <p>
     * An example of this would be the exact destination. A valid string would be: e:0,0,0 where an invalid one would
     * be e:1:2:3. The first string would return true the second would return false. This is simply a convenience
     * method
@@ -44,35 +43,35 @@ public interface MVDestination {
     *
     * @return True if the destination is valid, false if not.
     */
-    public boolean isThisType(JavaPlugin plugin, String destination);
+    boolean isThisType(JavaPlugin plugin, String destination);

    /**
-     * Returns the location a specific entity will spawn at.
-     * <p/>
+     * Returns the location a specific entity will spawn at when being teleported to this Destination.
+     * <p>
     * To just retrieve the location as it is stored you can just pass null, but be warned some destinations may return
     * null back to you if you do this. It is always safer to pass an actual entity. This is used so things like
     * minecarts can be teleported.
-     * <p/>
+     * <p>
     * Do not forget to use {@link #getVelocity()} as destinations can use this too!
     *
     * @param entity The entity to be teleported.
     *
     * @return The location of the entity.
     */
-    public Location getLocation(Entity entity);
+    Location getLocation(Entity entity);

    /**
     * Returns the velocity vector for this destination.
-     * <p/>
+     * <p>
     * Plugins wishing to fully support MVDestinations MUST implement this.
     *
     * @return A vector representing the speed/direction the player should travel when arriving
     */
-    public Vector getVelocity();
+    Vector getVelocity();

    /**
     * Sets the destination string.
-     * <p/>
+     * <p>
     * This should be used when you want to tell this destination object about a change in where it should take people.
     * The destination param should be match the result from {@link #getIdentifier()}. A valid example would be that if
     * {@link #getIdentifier()} returned "ow" our destination string could be "ow:TownCenter" but could not be
@@ -81,63 +80,63 @@ public interface MVDestination {
     * @param plugin      The plugin who the type belongs to.
     * @param destination The destination string. ex: p:MyPortal:nw
     */
-    public void setDestination(JavaPlugin plugin, String destination);
+    void setDestination(JavaPlugin plugin, String destination);

    /**
     * Returns true if the destination is valid and players will be taken to it.
-     * <p/>
+     * <p>
     * Even if destinations are in the correct format (p:MyPortal) MyPortal may not exist, and therefore this would
     * return false.
     *
     * @return True if the destination is valid; false if not.
     */
-    public boolean isValid();
+    boolean isValid();

    /**
     * Gives you a general friendly description of the type of destination.
-     * <p/>
+     * <p>
     * For example, the PlayerDestination sets this to "Player". You can use this to show where a player will be taken.
     *
     * @return A friendly string description of the type of destination.
     */
-    public String getType();
+    String getType();

    /**
     * Gives you a specific name of the destination.
-     * <p/>
+     * <p>
     * For example, the PlayerDestination sets this to The Player's Name.
     *
     * @return A friendly string stating the name of the destination.
     */
-    public String getName();
+    String getName();

    /**
     * Returns a string that can easily be saved in the config that contains all the details needed to rebuild this
     * destination.
-     * <p/>
+     * <p>
     * ex: e:0,0,0:50:50
     *
     * @return The savable config string.
     */
-    public String toString();
+    String toString();

    /**
     * Returns the permissions string required to go here.
-     * <p/>
+     * <p>
     * ex: multiverse.access.world
-     * <p/>
+     * <p>
     * NOTE: This is NOT the permission to use the teleport command.
     *
     * @return the permissions string required to go here.
     */
-    public String getRequiredPermission();
+    String getRequiredPermission();

    /**
     * Should the Multiverse SafeTeleporter be used?
-     * <p/>
+     * <p>
     * If not, MV will blindly take people to the location specified.
     *
     * @return True if the SafeTeleporter will be used, false if not.
     */
-    public boolean useSafeTeleporter();
+    boolean useSafeTeleporter();
 }
@@ -7,31 +7,16 @@

 package com.onarandombox.MultiverseCore.api;

-import com.onarandombox.MultiverseCore.MultiverseCore;
-
-public interface MVPlugin extends LoggablePlugin {
-    /**
-     * Adds This plugin's version information to the buffer and returns the new string.
-     *
-     * @param buffer The string that contains Core and all other MV plugins' versions.
-     *
-     * @return A modified buffer that contains this MVPlugin's version information.
-     */
-    public String dumpVersionInfo(String buffer);
-
+/**
+ * This interface is implemented by every official Multiverse-plugin.
+ */
+public interface MVPlugin {
    /**
     * Gets the reference to MultiverseCore.
     *
-     * @return A valid {@link MultiverseCore}.
+     * @return A valid {@link com.onarandombox.MultiverseCore}.
     */
-    public MultiverseCore getCore();
-
-    /**
-     * Sets the reference to MultiverseCore.
-     *
-     * @param core A valid {@link MultiverseCore}.
-     */
-    public void setCore(MultiverseCore core);
+    MVCore getCore();

    /**
     * Allows Multiverse or a plugin to query another Multiverse plugin to see what version its protocol is. This
@@ -40,5 +25,12 @@ public interface MVPlugin extends LoggablePlugin {
     *
     * @return The Integer protocol version.
     */
-    public int getProtocolVersion();
+    int getProtocolVersion();
+
+    /**
+     * Parse the Authors Array into a readable String with ',' and 'and'.
+     *
+     * @return The readable authors-{@link String}
+     */
+    String getAuthors();
 }
@@ -0,0 +1,675 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.api;
+
+import java.util.List;
+
+import com.onarandombox.MultiverseCore.exceptions.PropertyDoesNotExistException;
+import com.onarandombox.MultiverseCore.world.configuration.AddProperties;
+import com.onarandombox.MultiverseCore.world.configuration.AllowedPortalType;
+import com.onarandombox.MultiverseCore.world.configuration.EnglishChatColor;
+import org.bukkit.ChatColor;
+import org.bukkit.Difficulty;
+import org.bukkit.GameMode;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.WorldType;
+import org.bukkit.permissions.Permission;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * The API for a Multiverse Handled World.
+ */
+public interface MVWorld {
+    /**
+     * Returns the Bukkit world object that this world describes.
+     *
+     * @return A {@link World}
+     */
+    World getCBWorld();
+
+    /**
+     * Gets the name of this world. The name cannot be changed.
+     * <p>
+     * Note for plugin developers: Usually {@link #getAlias()}
+     * is what you want to use instead of this method.
+     *
+     * @return The name of the world as a String.
+     */
+    String getName();
+
+    /**
+     * Gets the type of this world. As of 1.2 this will be:
+     * FLAT, NORMAL or VERSION_1_1
+     * <p>
+     * This is <b>not</b> the generator.
+     *
+     * @return The Type of this world.
+     */
+    WorldType getWorldType();
+
+    /**
+     * Gets the environment of this world.
+     *
+     * @return A {@link org.bukkit.World.Environment}.
+     */
+    World.Environment getEnvironment();
+
+    /**
+     * Sets the environment of a world.
+     * <p>
+     * Note: This will ONLY take effect once the world is unloaded/reloaded.
+     *
+     * @param environment A {@link org.bukkit.World.Environment}.
+     */
+    void setEnvironment(World.Environment environment);
+
+    /**
+     * Gets the difficulty of this world.
+     *
+     * @return The difficulty of this world.
+     */
+    Difficulty getDifficulty();
+
+    /**
+     * Sets the difficulty of this world and returns true if success.
+     * Valid string values are either an integer of difficulty(0-3) or
+     * the name that resides in the Bukkit enum, ex. {@code PEACEFUL}
+     *
+     * @param difficulty The difficulty to set the world to as a string.
+     * @return True if success, false if the provided string
+     *         could not be translated to a difficulty.
+     * @deprecated Use {@link #setDifficulty(Difficulty)} or, if you have to
+     * pass a string, use {@link #setPropertyValue(String, String)} instead.
+     */
+    @Deprecated
+    boolean setDifficulty(String difficulty);
+
+    /**
+     * Sets the difficulty of this world and returns {@code true} on success.
+     * Valid string values are either an integer of difficulty(0-3) or
+     * the name that resides in the Bukkit enum, ex. PEACEFUL
+     *
+     * @param difficulty The new difficulty.
+     * @return True if success, false if the operation failed... for whatever reason.
+     */
+    boolean setDifficulty(Difficulty difficulty);
+
+    /**
+     * Gets the world seed of this world.
+     *
+     * @return The Long version of the seed.
+     */
+    long getSeed();
+
+    /**
+     * Sets the seed of this world.
+     *
+     * @param seed A Long that is the seed.
+     */
+    void setSeed(long seed);
+
+    /**
+     * Gets the generator of this world.
+     *
+     * @return The name of the generator.
+     */
+    String getGenerator();
+
+    /**
+     * Sets the generator of this world.
+     *
+     * @param generator The new generator's name.
+     */
+    void setGenerator(String generator);
+
+    /**
+     * Gets the help-message for a property.
+     * @param property The name of the property.
+     * @return The help-message.
+     * @throws PropertyDoesNotExistException Thrown if the property was not found.
+     */
+    String getPropertyHelp(String property) throws PropertyDoesNotExistException;
+
+    /**
+     * Gets a property as {@link String}.
+     *
+     * @param property The name of a world property to get.
+     * @return The string-representation of that property.
+     * @throws PropertyDoesNotExistException Thrown if the property was not found in the world.
+     */
+    String getPropertyValue(String property) throws PropertyDoesNotExistException;
+
+    /**
+     * Sets a property to a given value.
+     *
+     * @param property The name of a world property to set.
+     * @param value    A value in string representation, it will be parsed to the correct type.
+     * @return True if the value was set, false if not.
+     * @throws PropertyDoesNotExistException Thrown if the property was not found in the world.
+     */
+    boolean setPropertyValue(String property, String value) throws PropertyDoesNotExistException;
+
+    /**
+     * Adds a value to the given property. The property must be a {@link AddProperties}.
+     *
+     * @param property The name of a {@link AddProperties} to add a value to.
+     * @param value    A value in string representation, it will be parsed to the correct type.
+     * @return True if the value was added, false if not.
+     * @deprecated We changed the entire world-config-system. This is not compatible any more.
+     */
+    @Deprecated
+    boolean addToVariable(String property, String value);
+
+    /**
+     * Removes a value from the given property. The property must be a {@link AddProperties}.
+     *
+     * @param property The name of a {@link AddProperties} to remove a value
+     *                 from.
+     * @param value    A value in string representation, it will be parsed to the correct type.
+     * @return True if the value was removed, false if not.
+     * @deprecated We changed the entire world-config-system. This is not compatible any more.
+     */
+    @Deprecated
+    boolean removeFromVariable(String property, String value);
+
+    /**
+     * Removes all values from the given property. The property must be a {@link AddProperties}.
+     *
+     * @param property The name of a {@link AddProperties} to clear.
+     * @return True if it was cleared, false if not.
+     * @deprecated We changed the entire world-config-system. This is not compatible any more.
+     */
+    @Deprecated
+    boolean clearVariable(String property);
+
+    /**
+     * Clears a list property (sets it to []).
+     *
+     * @param property The property to clear.
+     * @return True if success, false if fail.
+     * @deprecated We changed the entire world-config-system. This is not compatible any more.
+     */
+    @Deprecated
+    boolean clearList(String property);
+    // end of old config stuff
+
+    // permission stuff
+    /**
+     * Gets the lowercased name of the world. This method is required, since the permissables
+     * lowercase all permissions when recalculating.
+     * <p>
+     * Note: This also means if a user has worlds named: world and WORLD, that they can both
+     * exist, and both be teleported to independently, but their permissions **cannot** be
+     * uniqueified at this time. See bug report #.
+     *
+     * @return The lowercased name of the world.
+     */
+    String getPermissibleName();
+
+    /**
+     * Gets the permission required to enter this world.
+     *
+     * @return The permission required to be exempt from charges to/from this world.
+     */
+    Permission getAccessPermission();
+
+    /**
+     * Gets the permission required to be exempt when entering.
+     *
+     * @return The permission required to be exempt when entering.
+     */
+    Permission getExemptPermission();
+    // end of permission stuff
+
+    /**
+     * Gets the alias of this world.
+     * <p>
+     * This alias allows users to have a world named "world" but show up in the list as "FernIsland"
+     *
+     * @return The alias of the world as a String.
+     */
+    String getAlias();
+
+    /**
+     * Sets the alias of the world.
+     *
+     * @param alias A string that is the new alias.
+     */
+    void setAlias(String alias);
+
+    /**
+     * Gets the color that this world's name/alias will display as.
+     *
+     * @return The color of this world.
+     */
+    ChatColor getColor();
+
+    /**
+     * Sets the color that this world's name/alias will display as.
+     *
+     * @param color A valid color name.
+     * @return True if the color was set, false if not.
+     */
+    boolean setColor(String color);
+
+    /**
+     * Gets the style that this world's name/alias will display as.
+     *
+     * @return The style of this world. {@code null} for "normal" style.
+     */
+    ChatColor getStyle();
+
+    /**
+     * Sets the style that this world's name/alias will display as.
+     *
+     * @param style A valid style name.
+     * @return True if the style was set, false if not.
+     */
+    boolean setStyle(String style);
+
+    /**
+     * Tells you if someone entered a valid color.
+     *
+     * @param color A string that may translate to a color.
+     * @return True if it is a color, false if not.
+     *
+     * @deprecated This has been moved: {@link EnglishChatColor#isValidAliasColor(String)}
+     */
+    @Deprecated
+    boolean isValidAliasColor(String color);
+
+    /**
+     * Returns a very nicely colored string (using Alias and Color if they are set).
+     *
+     * @return A nicely colored string.
+     */
+    String getColoredWorldString();
+
+    // animals&monster stuff
+    /**
+     * Gets whether or not animals are allowed to spawn in this world.
+     *
+     * @return True if ANY animal can, false if no animals can spawn.
+     */
+    boolean canAnimalsSpawn();
+
+    /**
+     * Sets whether or not animals can spawn.
+     * If there are values in {@link #getAnimalList()} and this is false,
+     * those animals become the exceptions, and will spawn
+     *
+     * @param allowAnimalSpawn True to allow spawning of monsters, false to prevent.
+     */
+    void setAllowAnimalSpawn(boolean allowAnimalSpawn);
+
+    /**
+     * Returns a list of animals. This list always negates the {@link #canAnimalsSpawn()} result.
+     *
+     * @return A list of animals that will spawn if {@link #canAnimalsSpawn()} is false.
+     */
+    List<String> getAnimalList();
+
+    /**
+     * Gets whether or not monsters are allowed to spawn in this world.
+     *
+     * @return True if ANY monster can, false if no monsters can spawn.
+     */
+    boolean canMonstersSpawn();
+
+    /**
+     * Sets whether or not monsters can spawn.
+     * If there are values in {@link #getMonsterList()} and this is false,
+     * those monsters become the exceptions, and will spawn
+     *
+     * @param allowMonsterSpawn True to allow spawning of monsters, false to prevent.
+     */
+    void setAllowMonsterSpawn(boolean allowMonsterSpawn);
+
+    /**
+     * Returns a list of monsters. This list always negates the {@link #canMonstersSpawn()} result.
+     *
+     * @return A list of monsters that will spawn if {@link #canMonstersSpawn()} is false.
+     */
+    List<String> getMonsterList();
+    // end of animal&monster stuff
+
+    /**
+     * Gets whether or not PVP is enabled in this world in some form (fake or not).
+     *
+     * @return True if players can take damage from other players.
+     */
+    boolean isPVPEnabled();
+
+    /**
+     * Turn pvp on or off. This setting is used to set the world's PVP mode.
+     *
+     * @param pvpMode True to enable PVP damage, false to disable it.
+     */
+    void setPVPMode(boolean pvpMode);
+
+    /**
+     * Turn pvp on or off. This setting is used to set the world's PVP mode, and thus relies on fakePVP
+     *
+     * @return True if this world has fakepvp on
+     * @deprecated This is deprecated.
+     */
+    @Deprecated
+    boolean getFakePVP();
+
+    /**
+     * Gets whether or not this world will display in chat, mvw and mvl regardless if a user has the
+     * access permissions to go to this world.
+     *
+     * @return True if the world will be hidden, false if not.
+     */
+    boolean isHidden();
+
+    /**
+     * Sets whether or not this world will display in chat, mvw and mvl regardless if a user has the
+     * access permissions to go to this world.
+     *
+     * @param hidden Set
+     */
+    void setHidden(boolean hidden);
+
+    /**
+     * Gets whether weather is enabled in this world.
+     *
+     * @return True if weather events will occur, false if not.
+     */
+    boolean isWeatherEnabled();
+
+    /**
+     * Sets whether or not there will be weather events in a given world.
+     * If set to false, Multiverse will disable the weather in the world immediately.
+     *
+     * @param enableWeather True if weather events should occur in a world, false if not.
+     */
+    void setEnableWeather(boolean enableWeather);
+
+    /**
+     * Gets whether or not CraftBukkit is keeping the chunks for this world in memory.
+     *
+     * @return True if CraftBukkit is keeping spawn chunks in memory.
+     */
+    boolean isKeepingSpawnInMemory();
+
+    /**
+     * If true, tells Craftbukkit to keep a worlds spawn chunks loaded in memory (default: true)
+     * If not, CraftBukkit will attempt to free memory when players have not used that world.
+     * This will not happen immediately.
+     *
+     * @param keepSpawnInMemory If true, CraftBukkit will keep the spawn chunks loaded in memory.
+     */
+    void setKeepSpawnInMemory(boolean keepSpawnInMemory);
+
+    /**
+     * Gets the spawn location of this world.
+     *
+     * @return The spawn location of this world.
+     */
+    Location getSpawnLocation();
+
+    /**
+     * Sets the spawn location for a world.
+     *
+     * @param spawnLocation The spawn location for a world.
+     */
+    void setSpawnLocation(Location spawnLocation);
+
+    /**
+     * Gets whether or not the hunger level of players will go down in a world.
+     *
+     * @return True if it will go down, false if it will remain steady.
+     */
+    boolean getHunger();
+
+    /**
+     * Sets whether or not the hunger level of players will go down in a world.
+     *
+     * @param hungerEnabled True if hunger will go down, false to keep it at
+     *                      the level they entered a world with.
+     */
+    void setHunger(boolean hungerEnabled);
+
+    /**
+     * Gets the GameMode of this world.
+     *
+     * @return The GameMode of this world.
+     */
+    GameMode getGameMode();
+
+    /**
+     * Sets the game mode of this world.
+     *
+     * @param gameMode A valid game mode string (either
+     *                 an int ex. 0 or a string ex. creative).
+     * @return True if the game mode was successfully changed, false if not.
+     * @deprecated Use {@link #setGameMode(GameMode)} instead. If you have to
+     * pass a string, use {@link #setPropertyValue(String, String)}.
+     */
+    @Deprecated
+    boolean setGameMode(String gameMode);
+
+    /**
+     * Sets the game mode of this world.
+     *
+     * @param gameMode The new {@link GameMode}.
+     * @return True if the game mode was successfully changed, false if not.
+     */
+    boolean setGameMode(GameMode gameMode);
+
+    /**
+     * Gets the amount of currency it requires to enter this world.
+     *
+     * @return The amount it costs to enter this world.
+     */
+    double getPrice();
+
+    /**
+     * Sets the price for entry to this world.
+     * You can think of this like an amount.
+     * The type can be set with {@link #setCurrency(Material)}
+     *
+     * @param price The Amount of money/item to enter the world.
+     */
+    void setPrice(double price);
+
+    /**
+     * Gets the type of currency that will be used when users enter this world. A value of null indicates a non-item
+     * based currency is used.
+     *
+     * @return The type of currency that will be used when users enter this world.
+     */
+    @Nullable
+    Material getCurrency();
+
+    /**
+     * Sets the type of item that will be required given the price is not 0.
+     * Use a value of null to specify a non-item based currency.
+     *
+     * @param item The Type of currency that will be used when users enter this world.
+     */
+    void setCurrency(@Nullable Material item);
+
+    /**
+     * Gets the world players will respawn in if they die in this one.
+     *
+     * @return A world that exists on the server.
+     */
+    World getRespawnToWorld();
+
+    /**
+     * Sets the world players will respawn in if they die in this one.
+     * Returns true upon success, false upon failure.
+     *
+     * @param respawnWorld The name of a world that exists on the server.
+     * @return True if respawnWorld existed, false if not.
+     */
+    boolean setRespawnToWorld(String respawnWorld);
+
+    /**
+     * Gets the scaling value of this world.Really only has an effect if you use
+     * Multiverse-NetherPortals.
+     *
+     * @return This world's non-negative, non-zero scale.
+     */
+    double getScaling();
+
+    /**
+     * Sets the scale of this world. Really only has an effect if you use
+     * Multiverse-NetherPortals.
+     *
+     * @param scaling A scaling value, cannot be negative or 0.
+     * @return Whether the scale was set successfully.
+     */
+    boolean setScaling(double scaling);
+
+    /**
+     * Gets whether or not a world will auto-heal players if the difficulty is on peaceful.
+     *
+     * @return True if the world should heal (default), false if not.
+     */
+    boolean getAutoHeal();
+
+    /**
+     * Sets whether or not a world will auto-heal players if the difficulty is on peaceful.
+     *
+     * @param heal True if the world will heal.
+     */
+    void setAutoHeal(boolean heal);
+
+    /**
+     * Gets whether or not Multiverse should auto-adjust the spawn for this world.
+     *
+     * @return True if Multiverse should adjust the spawn, false if not.
+     */
+    boolean getAdjustSpawn();
+
+    /**
+     * Sets whether or not Multiverse should auto-adjust the spawn for this world.
+     *
+     * @param adjust True if multiverse should adjust the spawn, false if not.
+     */
+    void setAdjustSpawn(boolean adjust);
+
+    /**
+     * Gets whether or not Multiverse should auto-load this world.
+     *
+     * @return True if Multiverse should auto-load this world.
+     */
+    boolean getAutoLoad();
+
+    /**
+     * Sets whether or not Multiverse should auto-load this world.
+     * <p>
+     * True is default.
+     *
+     * @param autoLoad True if multiverse should autoload this world the spawn, false if not.
+     */
+    void setAutoLoad(boolean autoLoad);
+
+    /**
+     * Gets whether or not a player who dies in this world will respawn in their
+     * bed or follow the normal respawn pattern.
+     *
+     * @return True if players dying in this world should respawn at their bed.
+     */
+    boolean getBedRespawn();
+
+    /**
+     * Sets whether or not a player who dies in this world will respawn in their
+     * bed or follow the normal respawn pattern.
+     * <p>
+     * True is default.
+     *
+     * @param autoLoad True if players dying in this world respawn at their bed.
+     */
+    void setBedRespawn(boolean autoLoad);
+
+    /**
+     * Sets the player limit for this world after which players without an override
+     * permission node will not be allowed in. A value of -1 or less signifies no limit
+     *
+     * @param limit The new limit
+     */
+    void setPlayerLimit(int limit);
+
+    /**
+     * Gets the player limit for this world after which players without an override
+     * permission node will not be allowed in. A value of -1 or less signifies no limit
+     *
+     * @return The player limit
+     */
+    int getPlayerLimit();
+
+    /**
+     * Same as {@link #getTime()}, but returns a string.
+     * @return The time as a short string: 12:34pm
+     */
+    String getTime();
+
+    /**
+     * Sets the current time in a world.
+     * <p>
+     * This method will take the following formats:
+     * 11:37am
+     *  4:30p
+     *  day(morning), night, noon, midnight
+     *
+     * @param timeAsString The formatted time to set the world to.
+     * @return True if the time was set, false if not.
+     */
+    boolean setTime(String timeAsString);
+
+    /**
+     * Sets The types of portals that are allowed in this world.
+     *
+     * @param type The type of portals allowed in this world.
+     */
+    void allowPortalMaking(AllowedPortalType type);
+
+    /**
+     * Gets which type(s) of portals are allowed to be constructed in this world.
+     *
+     * @return The type of portals that are allowed.
+     */
+    AllowedPortalType getAllowedPortals();
+
+    // properties that are not "getter+setter" style
+    /**
+     * Gets a list of all the worlds that players CANNOT travel to from this world,
+     * regardless of their access permissions.
+     *
+     * @return A List of world names.
+     */
+    List<String> getWorldBlacklist();
+
+    /**
+     * Gets all the names of all properties that can be SET.
+     *
+     * @return All property names, with alternating colors.
+     */
+    String getAllPropertyNames();
+
+    /**
+     * Whether or not players are allowed to fly in this world.
+     *
+     * @return True if players allowed to fly in this world.
+     */
+    boolean getAllowFlight();
+
+    /**
+     * Sets whether or not players are allowed to fly in this world.
+     *
+     * @param allowFlight True to allow flight in this world.
+     */
+    void setAllowFlight(final boolean allowFlight);
+}
@@ -7,16 +7,20 @@

 package com.onarandombox.MultiverseCore.api;

-import com.onarandombox.MultiverseCore.utils.PurgeWorlds;
+import java.io.File;
+import java.util.Collection;
+import java.util.List;
+
+import com.onarandombox.MultiverseCore.world.SimpleWorldPurger;
 import org.bukkit.World;
 import org.bukkit.World.Environment;
+import org.bukkit.WorldType;
+import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.generator.ChunkGenerator;

-import java.util.Collection;
-
 /**
 * Multiverse 2 World Manager API
- * <p/>
+ * <p>
 * This API contains all of the world managing
 * functions that your heart desires!
 */
@@ -24,52 +28,111 @@ public interface MVWorldManager {
    /**
     * Add a new World to the Multiverse Setup.
     *
-     * @param name       World Name
-     * @param env        Environment Type
-     * @param seedString The seed in the form of a string.
-     *                   If the seed is a Long,
-     *                   it will be interpreted as such.
-     * @param generator  The Custom generator plugin to use.
-     *
+     * @param name               World Name
+     * @param env                Environment Type
+     * @param seedString         The seed in the form of a string.
+     *                             If the seed is a Long,
+     *                             it will be interpreted as such.
+     * @param type               The Type of the world to be made.
+     * @param generateStructures If true, this world will get NPC villages.
+     * @param generator          The Custom generator plugin to use.
     * @return True if the world is added, false if not.
     */
-    public boolean addWorld(String name, Environment env, String seedString, String generator);
+    boolean addWorld(String name, Environment env, String seedString, WorldType type, Boolean generateStructures,
+                     String generator);
+
+    /**
+     * Add a new World to the Multiverse Setup.
+     *
+     * @param name               World Name
+     * @param env                Environment Type
+     * @param seedString         The seed in the form of a string.
+     *                             If the seed is a Long,
+     *                             it will be interpreted as such.
+     * @param type               The Type of the world to be made.
+     * @param generateStructures If true, this world will get NPC villages.
+     * @param generator          The Custom generator plugin to use.
+     * @param useSpawnAdjust If true, multiverse will search for a safe spawn. If not, It will not modify the level.dat.
+     * @return True if the world is added, false if not.
+     */
+    boolean addWorld(String name, Environment env, String seedString, WorldType type, Boolean generateStructures,
+                     String generator, boolean useSpawnAdjust);
+
+    /**
+     * Make a copy of a world.
+     *
+     * @param oldName
+     *            Name of world to be copied
+     * @param newName
+     *            Name of world to be created
+     * @return True if the world is copied successfully, false if not.
+     */
+    boolean cloneWorld(String oldName, String newName);
+
+    /**
+     * Remove the world from the Multiverse list, from the config and deletes
+     * the folder.
+     *
+     * @param name
+     *            The name of the world to remove
+     * @return True if success, false if failure.
+     */
+    boolean deleteWorld(String name);

    /**
     * Remove the world from the Multiverse list, from the
-     * config and deletes the folder
-     *
-     * @param name The name of the world to remove
+     * config if wanted, and deletes the folder.
     *
+     * @param name         The name of the world to remove
+     * @param removeConfig If true(default), we'll remove the entries from the
+     *                     config. If false, they'll stay and the world may come back.
     * @return True if success, false if failure.
     */
-    public Boolean deleteWorld(String name);
+    boolean deleteWorld(String name, boolean removeConfig);

    /**
-     * Unload a world from Multiverse
+     *
+     * @param name The name of the world to remove
+     * @param removeFromConfig If true(default), we'll remove the entries from the
+     *                         config. If false, they'll stay and the world may come back.
+     * @param deleteWorldFolder If true the world folder will be completely deleted. If false
+     *                          only the contents of the world folder will be deleted
+     * @return True if success, false if failure.
+     */
+    boolean deleteWorld(String name, boolean removeFromConfig, boolean deleteWorldFolder);
+
+    /**
+     * Unload a world from Multiverse.
     *
     * @param name Name of the world to unload
-     *
     * @return True if the world was unloaded, false if not.
     */
-    public boolean unloadWorld(String name);
+    boolean unloadWorld(String name);
+
+    /**
+     * Unload a world from Multiverse with option to prevent calling unloadWorld in Bukkit.
+     *
+     * @param name Name of the world to unload
+     * @param unloadBukkit True if Bukkit world should be unloaded
+     * @return True if the world was unloaded, false if not.
+     */
+    boolean unloadWorld(String name, boolean unloadBukkit);

    /**
     * Loads the world. Only use this if the world has been
     * unloaded with {@link #unloadWorld(String)}.
     *
     * @param name The name of the world to load
-     *
     * @return True if success, false if failure.
     */
-    public boolean loadWorld(String name);
+    boolean loadWorld(String name);

    /**
     * Removes all players from the specified world.
     *
     * @param name World to remove players from.
     */
-    public void removePlayersFromWorld(String name);
+    void removePlayersFromWorld(String name);

    /**
     * Test if a given chunk generator is valid.
@@ -77,68 +140,196 @@ public interface MVWorldManager {
     * @param generator   The generator name.
     * @param generatorID The generator id.
     * @param worldName   The worldName to use as the default.
-     *
     * @return A {@link ChunkGenerator} or null
     */
-    public ChunkGenerator getChunkGenerator(String generator, String generatorID, String worldName);
+    ChunkGenerator getChunkGenerator(String generator, String generatorID, String worldName);

    /**
     * Returns a list of all the worlds Multiverse knows about.
     *
-     * @return A list of {@link MultiverseWorld}.
+     * @return A list of {@link MVWorld}.
     */
-    public Collection<MultiverseWorld> getMVWorlds();
+    Collection<MVWorld> getMVWorlds();


    /**
-     * Returns a {@link MultiverseWorld} if it exists, and null if it does not.
+     * Returns a {@link MVWorld} if it exists, and null if it does not.
     * This will search name AND alias.
     *
     * @param name The name or alias of the world to get.
-     *
-     * @return A {@link MultiverseWorld} or null.
+     * @return A {@link MVWorld} or null.
     */
-    public MultiverseWorld getMVWorld(String name);
+    MVWorld getMVWorld(String name);

    /**
-     * Returns a {@link MultiverseWorld} if it exists, and null if it does not.
+     * Returns a {@link MVWorld} if the world with name given exists, and null if it does not.
+     * This will search optionally for alias names.
+     *
+     * @param name          The name or optionally the alias of the world to get.
+     * @param checkAliases  Indicates whether to check for world alias name.
+     * @return A {@link MVWorld} or null.
+     */
+    MVWorld getMVWorld(String name, boolean checkAliases);
+
+    /**
+     * Returns a {@link MVWorld} if it exists, and null if it does not.
     *
     * @param world The Bukkit world to check.
-     *
-     * @return A {@link MultiverseWorld} or null.
+     * @return A {@link MVWorld} or null.
     */
-    public MultiverseWorld getMVWorld(World world);
+    MVWorld getMVWorld(World world);

    /**
-     * Checks to see if the given name is a valid {@link MultiverseWorld}
+     * Checks to see if the given name is a valid {@link MVWorld}
+     * Searches based on world name AND alias.
     *
     * @param name The name or alias of the world to check.
-     *
     * @return True if the world exists, false if not.
     */
-    public boolean isMVWorld(String name);
+    boolean isMVWorld(String name);

    /**
-     * Checks to see if the given world is a valid {@link MultiverseWorld}
+     * Checks to see if the given name is a valid {@link MVWorld}.
+     * Optionally searches by alias is specified.
+     *
+     * @param name          The name or alias of the world to check.
+     * @param checkAliases  Indicates whether to check for world alias name.
+     * @return True if the world exists, false if not.
+     */
+    boolean isMVWorld(String name, boolean checkAliases);
+
+    /**
+     * Checks to see if the given world is a valid {@link MVWorld}.
     *
     * @param world The Bukkit world to check.
-     *
     * @return True if the world has been loaded into MV2, false if not.
     */
-    public boolean isMVWorld(World world);
+    boolean isMVWorld(World world);

    /**
-     * Load the Worlds & Settings from the configuration file.
+     * Load the Worlds &amp; Settings from the configuration file.
     *
     * @param forceLoad If set to true, this will perform a total
     *                  reset and not just load new worlds.
     */
-    public void loadWorlds(boolean forceLoad);
+    void loadWorlds(boolean forceLoad);

    /**
-     * Return the World Purger.
-     *
-     * @return A valid {@link PurgeWorlds}.
+     * Loads the Worlds &amp; Settings for any worlds that bukkit loaded before us.
+     * <p>
+     * This way people will _always_ have some worlds in the list.
     */
-    public PurgeWorlds getWorldPurger();
+    void loadDefaultWorlds();
+
+    /**
+     * Gets the {@link WorldPurger}.
+     * <p>
+     * @return The {@link WorldPurger} this {@link MVWorldManager} is using.
+     * @see WorldPurger
+     * @see SimpleWorldPurger
+     */
+    WorldPurger getTheWorldPurger();
+
+    /**
+     * Gets the world players will spawn in on first join.
+     * Currently this always returns worlds.get(0) from Bukkit.
+     *
+     * @return A Multiverse world that players will spawn in or null if no MV world has been set.
+     */
+    MVWorld getSpawnWorld();
+
+    /**
+     * Gets the list of worlds in the config, but unloaded.
+     *
+     * @return A List of worlds as strings.
+     */
+    List<String> getUnloadedWorlds();
+
+    /**
+     * This method populates an internal list and needs to be called after multiverse initialization.
+     */
+    void getDefaultWorldGenerators();
+
+    /**
+     * Load the config from a file.
+     *
+     * @param file The file to load.
+     * @return A loaded configuration.
+     */
+    FileConfiguration loadWorldConfig(File file);
+
+    /**
+     * Saves the world config to disk.
+     *
+     * @return True if success, false if fail.
+     */
+    boolean saveWorldsConfig();
+
+    /**
+     * Remove the world from the Multiverse list and from the config.
+     *
+     * @param name The name of the world to remove
+     * @return True if success, false if failure.
+     */
+    boolean removeWorldFromConfig(String name);
+
+    /**
+     * Sets the initial spawn world for new players.
+     *
+     * @param world The World new players should spawn in.
+     */
+    void setFirstSpawnWorld(String world);
+
+    /**
+     * Gets the world players should spawn in first.
+     *
+     * @return The {@link MVWorld} new players should spawn in.
+     */
+    MVWorld getFirstSpawnWorld();
+
+    /**
+     * Regenerates a world.
+     *
+     * @param name          Name of the world to regenerate
+     * @param useNewSeed    If a new seed should be used
+     * @param randomSeed    If the new seed should be random
+     * @param seed          The seed of the world.
+     *
+     * @return True if success, false if fail.
+     */
+    boolean regenWorld(String name, boolean useNewSeed, boolean randomSeed, String seed);
+
+    /**
+     * Regenerates a world.
+     *
+     * @param name          Name of the world to regenerate
+     * @param useNewSeed    If a new seed should be used
+     * @param randomSeed    If the new seed should be random
+     * @param seed          The seed of the world.
+     * @param keepGameRules If GameRules should be kept on world regen.
+     *
+     * @return True if success, false if fail.
+     */
+    boolean regenWorld(String name, boolean useNewSeed, boolean randomSeed, String seed, boolean keepGameRules);
+
+    boolean isKeepingSpawnInMemory(World world);
+    
+    /**
+     * Checks whether Multiverse knows about a provided unloaded world. This
+     * method will check the parameter against the alias mappings.
+     *
+     * @param name The name of the unloaded world
+     * @param includeLoaded The value to return if the world is loaded
+     *
+     * @return True if the world exists and is unloaded. False if the world
+     * does not exist. {@code includeLoaded} if the world exists and is loaded.
+     */
+    boolean hasUnloadedWorld(String name, boolean includeLoaded);
+
+    /**
+     * Get all the possible worlds that Multiverse has detected to be importable.
+     *
+     * @return A collection of world names that are deemed importable.
+     */
+    Collection<String> getPotentialWorlds();
 }
@@ -1,441 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.api;
-
-import org.bukkit.*;
-import org.bukkit.permissions.Permission;
-
-import java.util.List;
-
-/**
- * The API for a Multiverse Handled World.
- * <p/>
- * Currently INCOMPLETE
- */
-public interface MultiverseWorld {
-
-    /**
-     * Returns the Bukkit world object that this world describes.
-     *
-     * @return A {@link World}
-     */
-    public World getCBWorld();
-
-    /**
-     * Adds the property to the given value. The property must be a {@link com.onarandombox.MultiverseCore.enums.SetProperties}.
-     *
-     * @param property The name of a {@link com.onarandombox.MultiverseCore.enums.SetProperties} to set.
-     * @param value    A value in string representation, it will be parsed to the correct type.
-     *
-     * @return True if the value was set, false if not.
-     */
-    public boolean setVariable(String property, String value);
-
-    /**
-     * Removes all values from the given property. The property must be a {@link com.onarandombox.MultiverseCore.enums.AddProperties}.
-     *
-     * @param property The name of a {@link com.onarandombox.MultiverseCore.enums.AddProperties} to clear.
-     *
-     * @return True if it was cleared, false if not.
-     */
-    public boolean clearVariable(String property);
-
-    /**
-     * Adds a value to the given property. The property must be a {@link com.onarandombox.MultiverseCore.enums.AddProperties}.
-     *
-     * @param property The name of a {@link com.onarandombox.MultiverseCore.enums.AddProperties} to add a value to.
-     * @param value    A value in string representation, it will be parsed to the correct type.
-     *
-     * @return True if the value was added, false if not.
-     */
-    public boolean addToVariable(String property, String value);
-
-    /**
-     * Removes a value from the given property. The property must be a {@link com.onarandombox.MultiverseCore.enums.AddProperties}.
-     *
-     * @param property The name of a {@link com.onarandombox.MultiverseCore.enums.AddProperties} to remove a value
-     *                 from.
-     * @param value    A value in string representation, it will be parsed to the correct type.
-     *
-     * @return True if the value was removed, false if not.
-     */
-    public boolean removeFromVariable(String property, String value);
-
-    /**
-     * Gets the environment of this world.
-     *
-     * @return A {@link org.bukkit.World.Environment}.
-     */
-    public World.Environment getEnvironment();
-
-    /**
-     * Sets the environment of a world.
-     * <p/>
-     * Note: This will ONLY take effect once the world is unloaded/reloaded.
-     *
-     * @param environment A {@link org.bukkit.World.Environment}.
-     */
-    public void setEnvironment(World.Environment environment);
-
-    /**
-     * Gets the world seed of this world.
-     *
-     * @return The Long version of the seed.
-     */
-    public Long getSeed();
-
-    /**
-     * Sets the seed of this world.
-     *
-     * @param seed A Long that is the seed.
-     */
-    public void setSeed(Long seed);
-
-    /**
-     * Gets the name of this world. This cannot be changed.
-     *
-     * @return The name of the world as a String.
-     */
-    public String getName();
-
-    /**
-     * Gets the alias of this world.
-     * <p/>
-     * This alias allows users to have a world named "world" but show up in the list as "FernIsland"
-     *
-     * @return The alias of the world as a String.
-     */
-    public String getAlias();
-
-    /**
-     * Sets the alias of the world.
-     *
-     * @param alias A string that is the new alias.
-     */
-    public void setAlias(String alias);
-
-    /**
-     * Sets the color that this world's name/alias will display as.
-     *
-     * @param color A valid color name.
-     *
-     * @return True if the color was set, false if not.
-     */
-    public boolean setColor(String color);
-
-    /**
-     * Gets the color that this world's name/alias will display as.
-     *
-     * @return The color of this world.
-     */
-    public ChatColor getColor();
-
-    /**
-     * Tells you if someone entered a valid color.
-     *
-     * @param color A string that may translate to a color.
-     *
-     * @return True if it is a color, false if not.
-     */
-    public boolean isValidAliasColor(String color);
-
-    /**
-     * Returns a very nicely colored string (using Alias and Color if they are set).
-     *
-     * @return A nicely colored string.
-     */
-    public String getColoredWorldString();
-
-    /**
-     * Gets whether or not animals are allowed to spawn in this world.
-     *
-     * @return True if ANY animal can, false if no animals can spawn.
-     */
-    public boolean canAnimalsSpawn();
-
-    /**
-     * Gets whether or not monsters are allowed to spawn in this world.
-     *
-     * @return True if ANY monster can, false if no monsters can spawn.
-     */
-    public boolean canMonstersSpawn();
-
-    /**
-     * Turn pvp on or off. This setting is used to set the world's PVP mode, and thus relies on fakePVP
-     *
-     * @param pvpMode True to enable PVP damage, false to disable it.
-     */
-    public void setPVPMode(boolean pvpMode);
-
-    /**
-     * Turn pvp on or off. This setting is used to set the world's PVP mode, and thus relies on fakePVP
-     *
-     * @return True if this world has fakepvp on
-     */
-    public boolean getFakePVP();
-
-    /**
-     * Gets whether or not PVP is enabled in this world in some form (fake or not).
-     *
-     * @return True if players can take damage from other players.
-     */
-    public boolean isPVPEnabled();
-
-    /**
-     * Gets whether or not this world will display in chat, mvw and mvl regardless if a user has the
-     * access permissions to go to this world.
-     *
-     * @return True if the world will be hidden, false if not.
-     */
-    public boolean isHidden();
-
-    /**
-     * Sets whether or not this world will display in chat, mvw and mvl regardless if a user has the
-     * access permissions to go to this world.
-     *
-     * @param hidden Set
-     */
-    public void setHidden(boolean hidden);
-
-    /**
-     * Sets whether or not there will be weather events in a given world.
-     * If set to false, Multiverse will disable the weather in the world immediately.
-     *
-     * @param enableWeather True if weather events should occur in a world, false if not.
-     */
-    public void setEnableWeather(boolean enableWeather);
-
-    /**
-     * Gets whether weather is enabled in this world.
-     *
-     * @return True if weather events will occur, false if not.
-     */
-    public boolean isWeatherEnabled();
-
-    /**
-     * If true, tells Craftbukkit to keep a worlds spawn chunks loaded in memory (default: true)
-     * If not, CraftBukkit will attempt to free memory when players have not used that world.
-     * This will not happen immediately.
-     *
-     * @param keepSpawnInMemory If true, CraftBukkit will keep the spawn chunks loaded in memory.
-     */
-    public void setKeepSpawnInMemory(boolean keepSpawnInMemory);
-
-    /**
-     * Gets whether or not CraftBukkit is keeping the chunks for this world in memory.
-     *
-     * @return True if CraftBukkit is keeping spawn chunks in memory.
-     */
-    public boolean isKeepingSpawnInMemory();
-
-    /**
-     * Sets the difficulty of this world and returns true if success.
-     * Valid string values are either an integer of difficulty(0-3) or
-     * the name that resides in the Bukkit enum, ex. PEACEFUL
-     *
-     * @param difficulty The difficulty to set the world to as a string.
-     *
-     * @return True if success, false if the provided string
-     *         could not be translated to a difficulty.
-     */
-    public boolean setDifficulty(String difficulty);
-
-    /**
-     * Gets the difficulty of this world.
-     *
-     * @return The difficulty of this world.
-     */
-    public Difficulty getDifficulty();
-
-    /**
-     * Sets the spawn location for a world.
-     *
-     * @param spawnLocation The spawn location for a world.
-     */
-    public void setSpawnLocation(Location spawnLocation);
-
-    /**
-     * Gets the spawn location of this world.
-     *
-     * @return The spawn location of this world.
-     */
-    public Location getSpawnLocation();
-
-    /**
-     * Sets whether or not the hunger level of players will go down in a world.
-     *
-     * @param hungerEnabled True if hunger will go down, false to keep it at
-     *                      the level they entered a world with.
-     */
-    public void setHunger(boolean hungerEnabled);
-
-    /**
-     * Gets whether or not the hunger level of players will go down in a world.
-     *
-     * @return True if it will go down, false if it will remain steady.
-     */
-    public boolean getHunger();
-
-    /**
-     * Sets the game mode of this world
-     *
-     * @param gameMode A valid game mode string (either
-     *                 an int ex. 0 or a string ex. creative).
-     *
-     * @return True if the game mode was successfully changed, false if not.
-     */
-    public boolean setGameMode(String gameMode);
-
-    /**
-     * Gets the GameMode of this world.
-     *
-     * @return The GameMode of this world.
-     */
-    public GameMode getGameMode();
-
-    /**
-     * Gets the permission required to enter this world.
-     *
-     * @return The permission required to be exempt from charges to/from this world.
-     */
-    public Permission getAccessPermission();
-
-    /**
-     * Gets the permission required to be exempt when entering.
-     *
-     * @return The permission required to be exempt when entering.
-     */
-    public Permission getExemptPermission();
-
-    /**
-     * Sets the price for entry to this world.
-     * You can think of this like an amount.
-     * The type can be set with {@link #setCurrency(int)}
-     *
-     * @param price The Amount of money/item to enter the world.
-     */
-    public void setPrice(double price);
-
-    /**
-     * Gets the amount of currency it requires to enter this world.
-     *
-     * @return The amount it costs to enter this world.
-     */
-    public double getPrice();
-
-    /**
-     * Sets the type of item that will be required given the price is not 0.
-     * Use -1 to use an AllPay economy, or any valid itemid
-     *
-     * @param item The Type of currency that will be used when users enter this world.
-     */
-    public void setCurrency(int item);
-
-    /**
-     * Gets the Type of currency that will be used when users enter this world.
-     *
-     * @return The Type of currency that will be used when users enter this world.
-     */
-    public int getCurrency();
-
-    /**
-     * Sets the world players will respawn in if they die in this one.
-     * Returns true upon success, false upon failure.
-     *
-     * @param respawnWorld The name of a world that exists on the server.
-     *
-     * @return True if respawnWorld existed, false if not.
-     */
-    public boolean setRespawnToWorld(String respawnWorld);
-
-    /**
-     * Gets the world players will respawn in if they die in this one.
-     *
-     * @return A world that exists on the server.
-     */
-    public World getRespawnToWorld();
-
-    /**
-     * Sets the scale of this world. Really only has an effect if you use
-     * Multiverse-NetherPortals.
-     *
-     * @param scaling A scaling value, cannot be negative or 0.
-     */
-    public boolean setScaling(double scaling);
-
-    /**
-     * Gets the scaling value of this world.Really only has an effect if you use
-     * Multiverse-NetherPortals.
-     *
-     * @return This world's non-negative, non-zero scale.
-     */
-    public double getScaling();
-
-    /**
-     * Gets a list of all the worlds that players CANNOT travel to from this world,
-     * regardless of their access permissions.
-     *
-     * @return A List of world names.
-     */
-    public List<String> getWorldBlacklist();
-
-    /**
-     * Returns a list of animals. This list always negates the {@link #canAnimalsSpawn()} result.
-     *
-     * @return A list of animals that will spawn if {@link #canAnimalsSpawn()} is false.
-     */
-    public List<String> getAnimalList();
-
-    /**
-     * Sets whether or not animals can spawn.
-     * If there are values in {@link #getAnimalList()} and this is false,
-     * those animals become the exceptions, and will spawn
-     *
-     * @param allowAnimalSpawn True to allow spawning of monsters, false to prevent.
-     */
-    public void setAllowAnimalSpawn(boolean allowAnimalSpawn);
-
-    /**
-     * Returns a list of monsters. This list always negates the {@link #canMonstersSpawn()} ()} result.
-     *
-     * @return A list of monsters that will spawn if {@link #canMonstersSpawn()} is false.
-     */
-    public List<String> getMonsterList();
-
-    /**
-     * Sets whether or not monsters can spawn.
-     * If there are values in {@link #getMonsterList()} and this is false,
-     * those monsters become the exceptions, and will spawn
-     *
-     * @param allowMonsterSpawn True to allow spawning of monsters, false to prevent.
-     */
-    public void setAllowMonsterSpawn(boolean allowMonsterSpawn);
-
-    /**
-     * TODO: Write these docs.
-     *
-     * @param property
-     *
-     * @return
-     */
-    public boolean clearList(String property);
-
-    /**
-     * Sets whether or not a world will autoheal players if the difficulty is on peaceful.
-     *
-     * @param heal True if the world will heal.
-     */
-    public void setAutoHeal(boolean heal);
-
-    /**
-     * Gets whether or not a world will autoheal players if the difficulty is on peaceful.
-     *
-     * @return True if the world should heal (default), false if not.
-     */
-    public boolean getAutoHeal();
-}
@@ -0,0 +1,72 @@
+package com.onarandombox.MultiverseCore.api;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import com.onarandombox.MultiverseCore.destination.ParsedDestination;
+import com.onarandombox.MultiverseCore.teleportation.TeleportResult;
+import org.bukkit.Location;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Entity;
+
+/**
+ * Used to safely teleport people.
+ */
+public interface SafeTTeleporter extends Teleporter {
+
+    /**
+     * Gets the next safe location around the given location.
+     * @param l A {@link Location}.
+     * @return A safe {@link Location}.
+     */
+    Location getSafeLocation(Location l);
+
+    /**
+     * Gets the next safe location around the given location.
+     * @param l A {@link Location}.
+     * @param tolerance The tolerance.
+     * @param radius The radius.
+     * @return A safe {@link Location}.
+     */
+    Location getSafeLocation(Location l, int tolerance, int radius);
+
+    /**
+     * Safely teleport the entity to the MVDestination. This will perform checks to see if the place is safe, and if
+     * it's not, will adjust the final destination accordingly.
+     *
+     * @param teleporter    Person who performed the teleport command.
+     * @param teleportee    Entity to teleport
+     * @param destination   Destination to teleport them to
+     * @return true for success, false for failure
+     */
+    TeleportResult safelyTeleport(BukkitCommandIssuer teleporter, Entity teleportee, ParsedDestination<?> destination);
+
+    /**
+     * Safely teleport the entity to the Location. This may perform checks to
+     * see if the place is safe, and if
+     * it's not, will adjust the final destination accordingly.
+     *
+     * @param teleporter Person who issued the teleport command.
+     * @param teleportee Entity to teleport.
+     * @param location   Location to teleport them to.
+     * @param safely     Should the destination be checked for safety before teleport?
+     * @return true for success, false for failure.
+     */
+    TeleportResult safelyTeleport(CommandSender teleporter, Entity teleportee, Location location,
+            boolean safely);
+
+    /**
+     * Returns a safe location for the entity to spawn at.
+     *
+     * @param entity        The entity to spawn
+     * @param destination   The MVDestination to take the entity to.
+     * @return A new location to spawn the entity at.
+     */
+    Location getSafeLocation(Entity entity, DestinationInstance destination);
+
+    /**
+     * Finds a portal-block next to the specified {@link Location}.
+     * @param l The {@link Location}
+     * @return The next portal-block's {@link Location}.
+     */
+    Location findPortalBlockNextTo(Location l);
+
+}
@@ -0,0 +1,18 @@
+package com.onarandombox.MultiverseCore.api;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import com.onarandombox.MultiverseCore.destination.ParsedDestination;
+import com.onarandombox.MultiverseCore.teleportation.TeleportResult;
+import org.bukkit.entity.Entity;
+
+public interface Teleporter {
+    /**
+     * Teleport the entity to the Multiverse Destination.
+     *
+     * @param teleporter    Person who performed the teleport command.
+     * @param teleportee    Entity to teleport
+     * @param destination   Destination to teleport them to
+     * @return true for success, false for failure
+     */
+    TeleportResult teleport(BukkitCommandIssuer teleporter, Entity teleportee, ParsedDestination<?> destination);
+}
@@ -0,0 +1,68 @@
+package com.onarandombox.MultiverseCore.api;
+
+import java.util.List;
+
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Entity;
+
+/**
+ * Used to remove animals from worlds that don't belong there.
+ */
+public interface WorldPurger {
+    /**
+     * Synchronizes the given worlds with their settings.
+     *
+     * @param worlds A list of {@link MVWorld}
+     */
+    void purgeWorlds(List<MVWorld> worlds);
+
+    /**
+     * Convenience method for {@link #purgeWorld(MVWorld, java.util.List, boolean, boolean)} that takes the settings from the world-config.
+     *
+     * @param world The {@link MVWorld}.
+     */
+    void purgeWorld(MVWorld world);
+
+    /**
+     * Clear all animals/monsters that do not belong to a world according to the config.
+     *
+     * @param mvworld The {@link MVWorld}.
+     * @param thingsToKill A {@link List} of animals/monsters to be killed.
+     * @param negateAnimals Whether the monsters in the list should be negated.
+     * @param negateMonsters Whether the animals in the list should be negated.
+     */
+    void purgeWorld(MVWorld mvworld, List<String> thingsToKill, boolean negateAnimals,
+                    boolean negateMonsters);
+
+    /**
+     * Clear all animals/monsters that do not belong to a world according to the config.
+     *
+     * @param mvworld The {@link MVWorld}.
+     * @param thingsToKill A {@link List} of animals/monsters to be killed.
+     * @param negateAnimals Whether the monsters in the list should be negated.
+     * @param negateMonsters Whether the animals in the list should be negated.
+     * @param sender The {@link CommandSender} that initiated the action. He will/should be notified.
+     */
+    void purgeWorld(MVWorld mvworld, List<String> thingsToKill, boolean negateAnimals,
+                    boolean negateMonsters, CommandSender sender);
+
+    /**
+     * Determines whether the specified creature should be killed.
+     *
+     * @param e The creature.
+     * @param thingsToKill A {@link List} of animals/monsters to be killed.
+     * @param negateAnimals Whether the monsters in the list should be negated.
+     * @param negateMonsters Whether the animals in the list should be negated.
+     * @return {@code true} if the creature should be killed, otherwise {@code false}.
+     */
+    boolean shouldWeKillThisCreature(Entity e, List<String> thingsToKill, boolean negateAnimals, boolean negateMonsters);
+
+    /**
+     * Determines whether the specified creature should be killed and automatically reads the params from a world object.
+     *
+     * @param w The world.
+     * @param e The creature.
+     * @return {@code true} if the creature should be killed, otherwise {@code false}.
+     */
+    boolean shouldWeKillThisCreature(MVWorld w, Entity e);
+}
@@ -0,0 +1,5 @@
+/**
+ * The Multiverse-API, containing lots of interfaces that can be quite useful for other
+ * plugins when interacting with Multiverse.
+ */
+package com.onarandombox.MultiverseCore.api;
@@ -1,63 +1,40 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MVDestination;
-import com.onarandombox.MultiverseCore.destination.InvalidDestination;
-import com.onarandombox.MultiverseCore.utils.MVPermissions;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
+import com.onarandombox.MultiverseCore.destination.ParsedDestination;
 import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;

-import java.util.List;
-
-public class CheckCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public CheckCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class CheckCommand extends MultiverseCoreCommand {
+    public CheckCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Help you validate your multiverse settings");
-        this.setCommandUsage("/mv check " + ChatColor.GREEN + "{PLAYER} {DESTINATION}");
-        this.setArgRange(2, 2);
-        this.addKey("mv check");
-        this.addKey("mvcheck");
-        this.addCommandExample("/mv check " + ChatColor.GREEN + "fernferret " + ChatColor.LIGHT_PURPLE + "w:MyWorld");
-        this.addCommandExample("/mv check " + ChatColor.GREEN + "Rigby90 " + ChatColor.LIGHT_PURPLE + "p:MyPortal");
-        this.addCommandExample("/mv check " + ChatColor.GREEN + "lithium3141 " + ChatColor.LIGHT_PURPLE + "ow:WarpName");
-        this.setPermission("multiverse.core.debug", "Checks to see if a player can go to a destination. Prints debug if false.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        Player p = this.plugin.getServer().getPlayer(args.get(0));
-        if (p == null) {
-            sender.sendMessage("Could not find player " + ChatColor.GREEN + args.get(0));
-            sender.sendMessage("Are they online?");
-            return;
-        }
-        MVDestination dest = this.plugin.getDestFactory().getDestination(args.get(1));
-        if (dest instanceof InvalidDestination) {
-            sender.sendMessage("You asked if '" + args.get(0) + "' could go to " + ChatColor.GREEN + args.get(0) + ChatColor.WHITE + ",");
-            sender.sendMessage("but I couldn't find a Destination of that name? Did you type it correctly?");
-            return;
-        }
+    @Subcommand("check")
+    @CommandPermission("multiverse.core.check")
+    @CommandCompletion("@players @destinations|@mvworlds")
+    @Syntax("<player> <destination>")
+    @Description("Checks if a player can teleport to a destination.")
+    public void onCheckCommand(BukkitCommandIssuer issuer,

-        MVPermissions perms = this.plugin.getMVPerms();
-        if (perms.canEnterDestination(p, dest)) {
-            sender.sendMessage(ChatColor.GREEN + args.get(0) + ChatColor.WHITE + " can travel to " + ChatColor.GREEN + args.get(1));
-        } else {
-            sender.sendMessage(ChatColor.AQUA + args.get(0) + ChatColor.RED + " CANNOT travel to " + ChatColor.AQUA + args.get(1));
-            sender.sendMessage("Please turn debug mode to 3 then watch the console to find out why!");
-            sender.sendMessage("Use: " + ChatColor.GREEN + "/mv debug 3");
-        }
+                               @Syntax("<player>")
+                               @Description("Player to check destination on.")
+                               Player player,
+
+                               @Syntax("<destination>")
+                               @Description("A destination location, e.g. a world name.")
+                               ParsedDestination<?> destination
+    ) {
+        issuer.sendMessage("Checking " + player + " to " + destination + "...");
+        //TODO More detailed output on permissions required.
+        this.plugin.getDestinationsProvider().checkTeleportPermissions(issuer, player, destination);
    }
 }
@@ -0,0 +1,48 @@
+package com.onarandombox.MultiverseCore.commands;
+
+import co.aikar.commands.CommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Single;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import org.bukkit.ChatColor;
+import org.jetbrains.annotations.NotNull;
+
+@CommandAlias("mv")
+public class CloneCommand extends MultiverseCoreCommand {
+    public CloneCommand(@NotNull MultiverseCore plugin) {
+        super(plugin);
+    }
+
+    @Subcommand("clone")
+    @CommandPermission("multiverse.core.clone")
+    @CommandCompletion("@mvworlds:scope=both @empty")
+    @Syntax("<world> <new world name>")
+    @Description("Clones a world.")
+    public void onCloneCommand(CommandIssuer issuer,
+
+                               @Conditions("validWorldName:scope=both")
+                               @Syntax("<world>")
+                               @Description("The target world to clone.")
+                               String worldName,
+
+                               @Single
+                               @Conditions("validWorldName:scope=new")
+                               @Syntax("<new world name>")
+                               @Description("The new cloned world name.")
+                               String newWorldName
+    ) {
+        issuer.sendMessage(String.format("Cloning world '%s' to '%s'...", worldName, newWorldName));
+
+        if (!this.plugin.getMVWorldManager().cloneWorld(worldName, newWorldName)) {
+            issuer.sendMessage(String.format("%sWorld could not be cloned! See console for more details.", ChatColor.RED));
+            return;
+        }
+        issuer.sendMessage(String.format("%sCloned world '%s'!", ChatColor.GREEN, newWorldName));
+    }
+}
@@ -1,93 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MVWorldManager;
-import com.onarandombox.MultiverseCore.enums.ConfigProperty;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class ConfigCommand extends MultiverseCommand {
-    private MVWorldManager worldManager;
-
-    public ConfigCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Configuration");
-        this.setCommandUsage("/mv config " + ChatColor.GREEN + "{PROPERTY} {VALUE}");
-        this.setArgRange(1, 2);
-        this.addKey("mv config");
-        this.addKey("mvconfig");
-        this.addKey("mv conf");
-        this.addKey("mvconf");
-        this.addCommandExample("All values: " + ConfigProperty.getAllValues());
-        this.addCommandExample("/mv config show");
-        this.addCommandExample("/mv config " + ChatColor.GREEN + "debug" + ChatColor.AQUA + " 3");
-        this.addCommandExample("/mv config " + ChatColor.GREEN + "enforceaccess" + ChatColor.AQUA + " false");
-        this.addCommandExample("/mv config " + ChatColor.GREEN + "bedrespawn" + ChatColor.AQUA + " true");
-        this.setPermission("multiverse.core.config", "Allows you to set Global MV Variables.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (args.size() <= 1) {
-            String[] allProps = ConfigProperty.getAllValues().split(" ");
-            String currentvals = "";
-            for (String prop : allProps) {
-                currentvals += ChatColor.GREEN;
-                currentvals += prop;
-                currentvals += ChatColor.WHITE;
-                currentvals += " = ";
-                currentvals += ChatColor.GOLD;
-                currentvals += this.plugin.getMVConfiguration().get(prop, "NOT SET");
-                currentvals += ChatColor.WHITE;
-                currentvals += ", ";
-            }
-            sender.sendMessage(currentvals.substring(0, currentvals.length() - 2));
-            return;
-        }
-        if (args.get(0).equalsIgnoreCase("messagecooldown") || args.get(0).equalsIgnoreCase("teleportcooldown") || args.get(0).equalsIgnoreCase("debug")) {
-            try {
-                this.plugin.getMVConfiguration().set(args.get(0).toLowerCase(), Integer.parseInt(args.get(1)));
-            } catch (NumberFormatException e) {
-                sender.sendMessage(ChatColor.RED + "Sorry, " + ChatColor.AQUA + args.get(0) + ChatColor.WHITE + " must be an integer!");
-                return;
-            }
-        } else {
-            ConfigProperty property = null;
-            try {
-                property = ConfigProperty.valueOf(args.get(0).toLowerCase());
-            } catch (IllegalArgumentException e) {
-                sender.sendMessage(ChatColor.RED + "Sorry, " + ChatColor.AQUA + args.get(0) + ChatColor.WHITE + " you can't set " + ChatColor.AQUA + args.get(0));
-                sender.sendMessage(ChatColor.GREEN + "Valid values are:");
-                sender.sendMessage(ConfigProperty.getAllValues());
-                return;
-            }
-
-            if (property != null) {
-                try {
-                    this.plugin.getMVConfiguration().set(args.get(0).toLowerCase(), Boolean.parseBoolean(args.get(1)));
-                } catch (Exception e) {
-                    sender.sendMessage(ChatColor.RED + "Sorry, " + ChatColor.AQUA + args.get(0) + ChatColor.WHITE + " must be true or false!");
-                    return;
-                }
-
-            }
-        }
-        if (this.plugin.saveMVConfigs()) {
-            sender.sendMessage(ChatColor.GREEN + "SUCCESS!" + ChatColor.WHITE + " Values were updated successfully!");
-            this.plugin.loadConfigs();
-        } else {
-            sender.sendMessage(ChatColor.RED + "FAIL!" + ChatColor.WHITE + " Check your console for details!");
-        }
-    }
-}
@@ -1,36 +1,23 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Subcommand;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;

-import java.util.List;
-
-public class ConfirmCommand extends MultiverseCommand {
-
-    public ConfirmCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class ConfirmCommand extends MultiverseCoreCommand {
+    public ConfirmCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        // Any command that is dangerous should require op
-        this.setName("Confirms a command that could destroy life, the universe and everything.");
-        this.setCommandUsage("/mv confirm");
-        this.setArgRange(0, 0);
-        this.addKey("mvconfirm");
-        this.addKey("mv confirm");
-        this.addCommandExample("/mv confirm");
-        this.setPermission("multiverse.core.confirm", "If you have not been prompted to use this, it will not do anything.", PermissionDefault.OP);
-
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        this.plugin.getCommandHandler().confirmQueuedCommand(sender);
+    @Subcommand("confirm")
+    @CommandPermission("multiverse.core.confirm")
+    @Description("Confirms dangerous commands before executing them.")
+    public void onConfirmCommand(@NotNull BukkitCommandIssuer issuer) {
+        this.plugin.getMVCommandManager().getCommandQueueManager().runQueuedCommand(issuer.getIssuer());
    }
-
 }
@@ -1,68 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.utils.LocationManipulation;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.Material;
-import org.bukkit.World;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.text.DecimalFormat;
-import java.util.List;
-
-public class CoordCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public CoordCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Coordinates");
-        this.setCommandUsage("/mv coord");
-        this.setArgRange(0, 0);
-        this.addKey("mv coord");
-        this.addKey("mvcoord");
-        this.addKey("mvco");
-        this.addCommandExample("/mv coord");
-        this.setPermission("multiverse.core.coord", "Returns detailed information on the Players where abouts.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // Check if the command was sent from a Player.
-        if (sender instanceof Player) {
-            Player p = (Player) sender;
-            World world = p.getWorld();
-
-            if (!this.worldManager.isMVWorld(world.getName())) {
-                this.plugin.showNotMVWorldMessage(sender, world.getName());
-                return;
-            }
-
-            MultiverseWorld mvworld = this.worldManager.getMVWorld(world.getName());
-
-            p.sendMessage(ChatColor.AQUA + "--- Location Information ---");
-            p.sendMessage(ChatColor.AQUA + "World: " + ChatColor.WHITE + world.getName());
-            p.sendMessage(ChatColor.AQUA + "Alias: " + mvworld.getColoredWorldString());
-            p.sendMessage(ChatColor.AQUA + "World Scale: " + ChatColor.WHITE + mvworld.getScaling());
-            DecimalFormat df = new DecimalFormat();
-            df.setMinimumFractionDigits(0);
-            df.setMaximumFractionDigits(2);
-            p.sendMessage(ChatColor.AQUA + "Coordinates: " + ChatColor.WHITE + LocationManipulation.strCoords(p.getLocation()));
-            p.sendMessage(ChatColor.AQUA + "Direction: " + ChatColor.WHITE + LocationManipulation.getDirection(p.getLocation()));
-            p.sendMessage(ChatColor.AQUA + "Block: " + ChatColor.WHITE + Material.getMaterial(world.getBlockTypeIdAt(p.getLocation())));
-        } else {
-            sender.sendMessage("This command needs to be used from a Player.");
-        }
-    }
-}
@@ -1,71 +1,127 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import com.pneumaticraft.commandhandler.CommandHandler;
-import org.bukkit.ChatColor;
-import org.bukkit.World.Environment;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
+import java.util.Random;
+import java.util.stream.Collectors;

-public class CreateCommand extends MultiverseCommand {
-    private WorldManager worldManager;
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.InvalidCommandArgument;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Optional;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlag;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlagGroup;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandValueFlag;
+import com.onarandombox.MultiverseCore.commandtools.flags.ParsedCommandFlags;
+import com.onarandombox.MultiverseCore.locale.MVCorei18n;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.WorldType;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;

-    public CreateCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class CreateCommand extends MultiverseCoreCommand {
+    public CreateCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Create World");
-        this.setCommandUsage("/mv create" + ChatColor.GREEN + " {NAME} {ENV}" + ChatColor.GOLD + " -s [SEED] -g [GENERATOR[:ID]]");
-        this.setArgRange(2, 6);
-        this.addKey("mvcreate");
-        this.addKey("mvc");
-        this.addKey("mv create");
-        this.setPermission("multiverse.core.create", "Creates a new world and loads it.", PermissionDefault.OP);
-        this.addCommandExample("/mv create " + ChatColor.GOLD + "world" + ChatColor.GREEN + " normal");
-        this.addCommandExample("/mv create " + ChatColor.GOLD + "lavaland" + ChatColor.RED + " nether");
-        this.addCommandExample("/mv create " + ChatColor.GOLD + "starwars" + ChatColor.AQUA + " skylands");
-        this.addCommandExample("/mv create " + ChatColor.GOLD + "gargamel" + ChatColor.GREEN + " normal" + ChatColor.DARK_AQUA + " -s gargamel");
-        this.addCommandExample("/mv create " + ChatColor.GOLD + "moonworld" + ChatColor.GREEN + " normal" + ChatColor.DARK_AQUA + " -g BukkitFullOfMoon");
-        this.worldManager = this.plugin.getMVWorldManager();
+
+        registerFlagGroup(CommandFlagGroup.builder("mvcreate")
+                .add(CommandValueFlag.builder("--seed", String.class)
+                        .addAlias("-s")
+                        .completion(() -> Collections.singleton(String.valueOf(new Random().nextLong())))
+                        .build())
+                .add(CommandValueFlag.builder("--generator", String.class)
+                        .addAlias("-g")
+                        .completion(() -> Arrays.stream(Bukkit.getServer().getPluginManager().getPlugins())
+                                .filter(Plugin::isEnabled)
+                                .filter(genplugin -> this.plugin.getUnsafeCallWrapper().wrap(
+                                        () -> genplugin.getDefaultWorldGenerator("world", ""),
+                                        genplugin.getName(),
+                                        "Get generator"
+                                ) != null)
+                                .map(genplugin -> genplugin.getDescription().getName())
+                                .collect(Collectors.toList()))
+                        .build())
+                .add(CommandValueFlag.builder("--world-type", WorldType.class)
+                        .addAlias("-t")
+                        .context((value) -> {
+                            try {
+                                return WorldType.valueOf(value.toUpperCase());
+                            } catch (IllegalArgumentException e) {
+                                throw new InvalidCommandArgument("Invalid world type: " + value);
+                            }
+                        })
+                        .completion(() -> {
+                            List<String> types = new ArrayList<>();
+                            for (WorldType type : WorldType.values()) {
+                                types.add(type.name().toLowerCase());
+                            }
+                            return types;
+                        })
+                        .build())
+                .add(CommandFlag.builder("--adjust-spawn")
+                        .addAlias("-n")
+                        .build())
+                .add(CommandFlag.builder("--no-structures")
+                        .addAlias("-a")
+                        .build())
+                .build());
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (args.size() % 2 != 0) {
-            sender.sendMessage("You must preface your SEED with -s OR your GENERATOR with -g. Type /mv for help");
-            return;
-        }
-        String worldName = args.get(0);
-        String env = args.get(1);
-        String seed = CommandHandler.getFlag("-s", args);
-        String generator = CommandHandler.getFlag("-g", args);
+    @Subcommand("create")
+    @CommandPermission("multiverse.core.create")
+    @CommandCompletion("@empty  @flags:groupName=mvcreate")
+    @Syntax("<name> <environment> --seed [seed] --generator [generator[:id]] --world-type [worldtype] --adjust-spawn --no-structures")
+    @Description("{@@mv-core.create.description}")
+    public void onCreateCommand(BukkitCommandIssuer issuer,

-        if (new File(worldName).exists() || this.worldManager.isMVWorld(worldName)) {
-            sender.sendMessage(ChatColor.RED + "A Folder/World already exists with this name!");
-            sender.sendMessage(ChatColor.RED + "If you are confident it is a world you can import with /mvimport");
-            return;
-        }
+                                @Conditions("validWorldName:scope=new")
+                                @Syntax("<name>")
+                                @Description("{@@mv-core.create.name.description}")
+                                String worldName,

-        Environment environment = this.plugin.getEnvFromString(env);
-        if (environment == null) {
-            sender.sendMessage(ChatColor.RED + "That is not a valid environment.");
-            EnvironmentCommand.showEnvironments(sender);
+                                @Syntax("<environment>")
+                                @Description("{@@mv-core.create.environment.description}")
+                                World.Environment environment,
+
+                                @Optional
+                                @Syntax("--seed [seed] --generator [generator[:id]] --world-type [worldtype] --adjust-spawn --no-structures")
+                                @Description("{@@mv-core.create.flags.description}")
+                                String[] flags
+    ) {
+        ParsedCommandFlags parsedFlags = parseFlags(flags);
+
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES, "{worldName}", worldName);
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES_ENVIRONMENT, "{environment}", environment.name());
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES_SEED, "{seed}", parsedFlags.flagValue("--seed", "RANDOM", String.class));
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES_WORLDTYPE, "{worldType}", parsedFlags.flagValue("--world-type", WorldType.NORMAL, WorldType.class).name());
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES_ADJUSTSPAWN, "{adjustSpawn}", String.valueOf(parsedFlags.hasFlag("--adjust-spawn")));
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES_GENERATOR, "{generator}", parsedFlags.flagValue("--generator", "null", String.class));
+        issuer.sendInfo(MVCorei18n.CREATE_PROPERTIES_STRUCTURES, "{structures}", String.valueOf(!parsedFlags.hasFlag("--no-structures")));
+
+        issuer.sendInfo(MVCorei18n.CREATE_LOADING);
+
+        if (!worldManager.addWorld(
+                worldName,
+                environment,
+                parsedFlags.flagValue("--seed", String.class),
+                parsedFlags.flagValue("--world-type", WorldType.NORMAL, WorldType.class),
+                parsedFlags.hasFlag("--adjust-spawn"),
+                parsedFlags.flagValue("--generator", String.class),
+                parsedFlags.hasFlag("--no-structures")
+        )) {
+            issuer.sendError(MVCorei18n.CREATE_FAILED, "{worldName}", worldName);
            return;
        }
-        sender.sendMessage(ChatColor.AQUA + "Starting world creation...");
-        if (this.worldManager.addWorld(worldName, environment, seed, generator)) {
-            sender.sendMessage(ChatColor.GREEN + "Complete!");
-        } else {
-            sender.sendMessage(ChatColor.RED + "FAILED.");
-        }
+        issuer.sendInfo(MVCorei18n.CREATE_SUCCESS, "{worldName}", worldName);
    }
 }
@@ -1,61 +1,53 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
+import com.dumptruckman.minecraft.util.Logging;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import com.onarandombox.MultiverseCore.locale.MVCorei18n;
+import org.jetbrains.annotations.NotNull;

-import java.util.List;
-import java.util.logging.Level;
-
-public class DebugCommand extends MultiverseCommand {
-
-    public DebugCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class DebugCommand extends MultiverseCoreCommand {
+    public DebugCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Turn Debug on/off?");
-        this.setCommandUsage("/mv debug" + ChatColor.GOLD + " [1|2|3|off]");
-        this.setArgRange(0, 1);
-        this.addKey("mv debug");
-        this.addKey("mv d");
-        this.addKey("mvdebug");
-        this.addCommandExample("/mv debug " + ChatColor.GOLD + "2");
-        this.setPermission("multiverse.core.debug", "Spams the console a bunch.", PermissionDefault.OP);
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (args.size() == 1) {
-            if (args.get(0).equalsIgnoreCase("off")) {
-                MultiverseCore.GlobalDebug = 0;
-            } else {
-                try {
-                    int debugLevel = Integer.parseInt(args.get(0));
-                    if (debugLevel > 3 || debugLevel < 0) {
-                        throw new NumberFormatException();
-                    }
-                    MultiverseCore.GlobalDebug = debugLevel;
-                } catch (NumberFormatException e) {
-                    sender.sendMessage(ChatColor.RED + "Error" + ChatColor.WHITE + " setting debug level. Please use a number 0-3 " + ChatColor.AQUA + "(3 being many many messages!)");
-                }
-
-            }
-        }
-        this.displayDebugMode(sender);
+    @Subcommand("debug")
+    @CommandPermission("multiverse.core.debug")
+    @Description("{@@mv-core.debug.info.description}")
+    public void onShowDebugCommand(BukkitCommandIssuer issuer) {
+        this.displayDebugMode(issuer);
    }

-    private void displayDebugMode(CommandSender sender) {
-        if (MultiverseCore.GlobalDebug == 0) {
-            sender.sendMessage("Multiverse Debug mode is " + ChatColor.RED + "OFF");
-        } else {
-            sender.sendMessage("Multiverse Debug mode is " + ChatColor.GREEN + MultiverseCore.GlobalDebug);
-            this.plugin.log(Level.FINE, "Multiverse Debug ENABLED");
+    @Subcommand("debug")
+    @CommandPermission("multiverse.core.debug")
+    @CommandCompletion("@range:3")
+    @Syntax("<{@@mv-core.debug.change.syntax}>")
+    @Description("{@@mv-core.debug.change.description}")
+    public void onChangeDebugCommand(BukkitCommandIssuer issuer,
+
+                                     @Syntax("<{@@mv-core.debug.change.syntax}>")
+                                     @Description("{@@mv-core.debug.change.level.description}")
+                                     int level) {
+
+        this.plugin.getMVConfig().setGlobalDebug(level);
+        this.plugin.saveAllConfigs();
+        this.displayDebugMode(issuer);
+    }
+
+    private void displayDebugMode(BukkitCommandIssuer issuer) {
+        final int debugLevel = this.plugin.getMVConfig().getGlobalDebug();
+        if (debugLevel == 0) {
+            issuer.sendInfo(MVCorei18n.DEBUG_INFO_OFF);
+            return;
        }
+        issuer.sendInfo(MVCorei18n.DEBUG_INFO_ON, "{level}", String.valueOf(debugLevel));
+        Logging.fine("Multiverse Debug ENABLED.");
    }
 }
@@ -1,37 +1,49 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Single;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.commandtools.queue.QueuedCommand;
 import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;

-import java.util.ArrayList;
-import java.util.List;
-
-public class DeleteCommand extends MultiverseCommand {
-
-    public DeleteCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class DeleteCommand extends MultiverseCoreCommand {
+    public DeleteCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Delete World");
-        this.setCommandUsage("/mv delete" + ChatColor.GREEN + " {WORLD}");
-        this.setArgRange(1, 1);
-        this.addKey("mvdelete");
-        this.addKey("mv delete");
-        this.addCommandExample("/mv create " + ChatColor.GOLD + "MyWorld");
-        this.setPermission("multiverse.core.delete", "Deletes a world on your server. " + ChatColor.RED + "PERMANENTLY.", PermissionDefault.OP);
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        Class<?> paramTypes[] = {String.class};
-        List<Object> objectArgs = new ArrayList<Object>(args);
-        this.plugin.getCommandHandler().queueCommand(sender, "mvdelete", "deleteWorld", objectArgs, paramTypes, ChatColor.GREEN + "World Deleted!", ChatColor.RED + "World could NOT be deleted!");
+    @Subcommand("delete")
+    @CommandPermission("multiverse.core.delete")
+    @CommandCompletion("@mvworlds:scope=both")
+    @Syntax("<world>")
+    @Description("Deletes a world on your server PERMANENTLY.")
+    public void onDeleteCommand(BukkitCommandIssuer issuer,
+
+                                @Single
+                                @Conditions("validWorldName:scope=both")
+                                @Syntax("<world>")
+                                @Description("The world you want to delete.")
+                                String worldName
+    ) {
+        this.plugin.getMVCommandManager().getCommandQueueManager().addToQueue(new QueuedCommand(
+                issuer.getIssuer(),
+                () -> {
+                    issuer.sendMessage(String.format("Deleting world '%s'...", worldName));
+                    if (!this.plugin.getMVWorldManager().deleteWorld(worldName)) {
+                        issuer.sendMessage(String.format("%sThere was an issue deleting '%s'! Please check console for errors.", ChatColor.RED, worldName));
+                        return;
+                    }
+                    issuer.sendMessage(String.format("%sWorld %s was deleted!", ChatColor.GREEN, worldName));
+                },
+                "Are you sure you want to delete world '" + worldName + "'?"
+        ));
    }
 }
@@ -1,43 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class EnvironmentCommand extends MultiverseCommand {
-
-    public EnvironmentCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("List Environments");
-        this.setCommandUsage("/mv env");
-        this.setArgRange(0, 0);
-        this.addKey("mvenv");
-        this.addKey("mv env");
-        this.addKey("mv environment");
-        this.addKey("mv environments");
-        this.addCommandExample("/mv env");
-        this.setPermission("multiverse.core.list.environments", "Lists valid known environments.", PermissionDefault.OP);
-    }
-
-    public static void showEnvironments(CommandSender sender) {
-        sender.sendMessage(ChatColor.YELLOW + "Valid Environments are:");
-        sender.sendMessage(ChatColor.GREEN + "NORMAL");
-        sender.sendMessage(ChatColor.RED + "NETHER");
-        sender.sendMessage(ChatColor.AQUA + "SKYLANDS");
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        EnvironmentCommand.showEnvironments(sender);
-    }
-}
@@ -0,0 +1,63 @@
+package com.onarandombox.MultiverseCore.commands;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Flags;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MVWorld;
+import com.onarandombox.MultiverseCore.commandtools.context.GameRuleValue;
+import org.bukkit.ChatColor;
+import org.bukkit.GameRule;
+import org.jetbrains.annotations.NotNull;
+
+@CommandAlias("mv")
+public class GameruleCommand extends MultiverseCoreCommand {
+    public GameruleCommand(@NotNull MultiverseCore plugin) {
+        super(plugin);
+    }
+
+    @Subcommand("gamerule")
+    @CommandPermission("multiverse.core.gamerule")
+    @CommandCompletion("@gamerules true|false|@range:1-10 @mvworlds:multiple|*")
+    @Syntax("<Gamerule> <Gamerule value> [World or *]")
+    @Description("Changes a gamerule in one or more worlds")
+    public void onGameruleCommand(BukkitCommandIssuer issuer,
+
+                                  @Syntax("<Gamerule>")
+                                  @Description("Gamerule to set")
+                                  GameRule gamerule,
+
+                                  @Syntax("<Value>")
+                                  @Description("Value of gamerule")
+                                  GameRuleValue gameRuleValue,
+
+                                  @Flags("resolve=issuerAware")
+                                  @Syntax("[World or *]")
+                                  @Description("World to apply gamerule to, current world by default")
+                                  MVWorld[] worlds
+    ) {
+        Object value = gameRuleValue.getValue();
+        boolean success = true;
+        for(MVWorld world : worlds) {
+            // Set gamerules and add false to list if it fails
+            if (!world.getCBWorld().setGameRule(gamerule, value)) {
+                issuer.sendMessage(ChatColor.RED + "Failed to set gamerule " + gamerule.getName() + " to " + value + " in " + world.getName() + ". It should be a " + gamerule.getType());
+                success = false;
+            }
+        }
+        // Tell user if it was successful
+        if (success) {
+            if (worlds.length == 1) {
+                issuer.sendMessage(ChatColor.GREEN + "Successfully set " + gamerule.getName() + " to " + value + " in " + worlds[0].getName());
+            }
+            else if (worlds.length > 1) {
+                issuer.sendMessage(ChatColor.GREEN + "Successfully set " + gamerule.getName() + " to " + value + " in " + worlds.length + " worlds.");
+            }
+        }
+    }
+}
@@ -1,62 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
-import org.bukkit.plugin.Plugin;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.logging.Level;
-
-public class GeneratorCommand extends MultiverseCommand {
-
-    public GeneratorCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("World Information");
-        this.setCommandUsage("/mv generators");
-        this.setArgRange(0, 0);
-        this.addKey("mv generators");
-        this.addKey("mvgenerators");
-        this.addKey("mv gens");
-        this.addKey("mvgens");
-        this.addCommandExample("/mv generators");
-        this.setPermission("multiverse.core.generator", "Returns a list of Loaded Generator Plugins.", PermissionDefault.OP);
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        this.plugin.log(Level.INFO, "PLEASE IGNORE the 'Plugin X does not contain any generators' message below!");
-        Plugin[] plugins = this.plugin.getServer().getPluginManager().getPlugins();
-        List<String> generators = new ArrayList<String>();
-        for (Plugin p : plugins) {
-            if (p.isEnabled() && p.getDefaultWorldGenerator("world", "") != null) {
-                generators.add(p.getDescription().getName());
-            }
-        }
-        sender.sendMessage(ChatColor.AQUA + "--- Loaded Generator Plugins ---");
-        String loadedGens = "";
-        boolean altColor = false;
-        for (String s : generators) {
-            if (altColor) {
-                altColor = false;
-                loadedGens += ChatColor.YELLOW + s + "";
-            } else {
-                altColor = true;
-                loadedGens += ChatColor.WHITE + s + "";
-            }
-        }
-        if (loadedGens.length() == 0) {
-            loadedGens = ChatColor.RED + "No Generator Plugins found.";
-        }
-        sender.sendMessage(loadedGens);
-    }
-}
@@ -1,134 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-// This file is no longer licensed under that silly CC license. I have blanked it out and will start implementaiton of my own in a few days. For now there is no help.
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.pneumaticraft.commandhandler.Command;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class HelpCommand extends MultiverseCommand {
-    private static final int CMDS_PER_PAGE = 7;
-
-    public HelpCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Get Help with Multiverse");
-        this.setCommandUsage("/mv " + ChatColor.GOLD + "[FILTER] [PAGE #]");
-        this.setArgRange(0, 2);
-        this.addKey("mv");
-        this.addKey("mvh");
-        this.addKey("mvhelp");
-        this.addKey("mv help");
-        this.addKey("mvsearch");
-        this.addKey("mv search");
-        this.addCommandExample("/mv help ?");
-        this.setPermission("multiverse.help", "Displays a nice help menu.", PermissionDefault.TRUE);
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        sender.sendMessage(ChatColor.AQUA + "====[ Multiverse Help ]====");
-
-        int page = 1;
-
-        String filter = "";
-
-        if (args.size() == 0) {
-            filter = "";
-            page = 1;
-        } else if (args.size() == 1) {
-            try {
-                page = Integer.parseInt(args.get(0));
-            } catch (NumberFormatException ex) {
-                filter = args.get(0);
-                page = 1;
-            }
-        } else if (args.size() == 2) {
-            filter = args.get(0);
-            try {
-                page = Integer.parseInt(args.get(1));
-            } catch (NumberFormatException ex) {
-                page = 1;
-            }
-        }
-
-        List<Command> availableCommands = new ArrayList<Command>(this.plugin.getCommandHandler().getCommands(sender));
-        if (filter.length() > 0) {
-            availableCommands = this.getFilteredCommands(availableCommands, filter);
-            if (availableCommands.size() == 0) {
-                sender.sendMessage(ChatColor.RED + "Sorry... " + ChatColor.WHITE + "No commands matched your filter: " + ChatColor.AQUA + filter);
-                return;
-            }
-        }
-
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.AQUA + " Add a '" + ChatColor.DARK_PURPLE + "?" + ChatColor.AQUA + "' after a command to see more about it.");
-            for (Command c : availableCommands) {
-                sender.sendMessage(ChatColor.AQUA + c.getCommandUsage());
-            }
-            return;
-        }
-
-        int totalPages = (int) Math.ceil(availableCommands.size() / (CMDS_PER_PAGE + 0.0));
-
-        if (page > totalPages) {
-            page = totalPages;
-        }
-
-        sender.sendMessage(ChatColor.AQUA + " Page " + page + " of " + totalPages);
-        sender.sendMessage(ChatColor.AQUA + " Add a '" + ChatColor.DARK_PURPLE + "?" + ChatColor.AQUA + "' after a command to see more about it.");
-
-        this.showPage(page, sender, availableCommands);
-
-    }
-
-    private List<Command> getFilteredCommands(List<Command> availableCommands, String filter) {
-        List<Command> filtered = new ArrayList<Command>();
-
-        for (Command c : availableCommands) {
-            if (stitchThisString(c.getKeyStrings()).matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            } else if (c.getCommandName().matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            } else if (c.getCommandDesc().matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            } else if (c.getCommandUsage().matches("(?i).*" + filter + ".*")) {
-                filtered.add(c);
-            }
-        }
-        return filtered;
-    }
-
-    private String stitchThisString(List<String> list) {
-        String returnstr = "";
-        for (String s : list) {
-            returnstr += s + " ";
-        }
-        return returnstr;
-    }
-
-    private void showPage(int page, CommandSender sender, List<Command> cmds) {
-        int start = (page - 1) * CMDS_PER_PAGE;
-        int end = start + CMDS_PER_PAGE;
-        for (int i = start; i < end; i++) {
-            // For consistancy, print some extra lines if it's a player:
-            if (i < cmds.size()) {
-                sender.sendMessage(ChatColor.AQUA + cmds.get(i).getCommandUsage());
-            } else if (sender instanceof Player) {
-                sender.sendMessage(" ");
-            }
-        }
-    }
-
-}
@@ -1,73 +1,88 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import java.util.Arrays;
+import java.util.stream.Collectors;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Optional;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlag;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlagGroup;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandValueFlag;
+import com.onarandombox.MultiverseCore.commandtools.flags.ParsedCommandFlags;
+import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
-import org.bukkit.World.Environment;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import org.bukkit.World;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;

-import java.io.File;
-import java.util.List;
-
-public class ImportCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public ImportCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class ImportCommand extends MultiverseCoreCommand {
+    public ImportCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Import World");
-        this.setCommandUsage("/mv import" + ChatColor.GREEN + " {NAME} {ENV} " + ChatColor.GOLD + "[GENERATOR[:ID]]");
-        this.setArgRange(2, 3);
-        this.addKey("mvimport");
-        this.addKey("mvim");
-        this.addKey("mv import");
-        this.addCommandExample("/mv import " + ChatColor.GOLD + "gargamel" + ChatColor.GREEN + " normal");
-        this.addCommandExample("/mv import " + ChatColor.GOLD + "hell_world" + ChatColor.GREEN + " nether");
-        this.addCommandExample("/mv import " + ChatColor.GOLD + "CleanRoom" + ChatColor.GREEN + " normal" + ChatColor.DARK_AQUA + " CleanRoomGenerator");
-        this.setPermission("multiverse.core.import", "Imports a new world of the specified type.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
+
+        registerFlagGroup(CommandFlagGroup.builder("mvimport")
+                .add(CommandValueFlag.builder("--generator", String.class)
+                        .addAlias("-g")
+                        .completion(() -> Arrays.stream(Bukkit.getServer().getPluginManager().getPlugins())
+                                .filter(Plugin::isEnabled)
+                                .filter(genplugin -> this.plugin.getUnsafeCallWrapper().wrap(
+                                        () -> genplugin.getDefaultWorldGenerator("world", ""),
+                                        genplugin.getName(),
+                                        "Get generator"
+                                ) != null)
+                                .map(genplugin -> genplugin.getDescription().getName())
+                                .collect(Collectors.toList()))
+                        .build())
+                .add(CommandFlag.builder("--adjust-spawn")
+                        .addAlias("-a")
+                        .build())
+                .build());
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        String worldName = args.get(0);
-        if (this.worldManager.isMVWorld(worldName) && new File(worldName).exists()) {
-            sender.sendMessage(ChatColor.RED + "Multiverse already knows about this world!");
+    @Subcommand("import")
+    @CommandPermission("multiverse.core.import")
+    @CommandCompletion("@mvworlds:scope=potential  @flags:groupName=mvimport")
+    @Syntax("<name> <env> --generator [generator[:id]] --adjust-spawn")
+    @Description("Imports a existing world folder.")
+    public void onImportCommand(BukkitCommandIssuer issuer,
+
+                                @Conditions("validWorldName:scope=new")
+                                @Syntax("<name>")
+                                @Description("Name of the world folder.")
+                                String worldName,
+
+                                @Syntax("<env>")
+                                @Description("The world's environment. See: /mv env")
+                                World.Environment environment,
+
+                                @Optional
+                                @Syntax("--generator [generator[:id]] --adjust-spawn")
+                                @Description("Other world settings. See: https://gg.gg/nn8c2")
+                                String[] flags) {
+
+        ParsedCommandFlags parsedFlags = parseFlags(flags);
+
+        issuer.sendMessage(String.format("Starting import of world '%s'...", worldName));
+
+        if (!this.worldManager.addWorld(
+                worldName, environment,
+                null,
+                null,
+                null,
+                parsedFlags.flagValue("--generator", String.class),
+                parsedFlags.hasFlag("--adjust-spawn"))
+        ) {
+            issuer.sendMessage(String.format("%sFailed! See console for more details.", ChatColor.RED));
            return;
        }
-
-        String generator = null;
-        if (args.size() == 3) {
-            generator = args.get(2);
-        }
-
-        String env = args.get(1);
-        Environment environment = this.plugin.getEnvFromString(env);
-        if (environment == null) {
-            sender.sendMessage(ChatColor.RED + "That is not a valid environment.");
-            EnvironmentCommand.showEnvironments(sender);
-            return;
-        }
-
-        if (new File(worldName).exists() && env != null) {
-            sender.sendMessage(ChatColor.AQUA + "Starting world import...");
-            this.worldManager.addWorld(worldName, environment, null, generator);
-            sender.sendMessage(ChatColor.GREEN + "Complete!");
-            return;
-        } else if (env == null) {
-            sender.sendMessage(ChatColor.RED + "FAILED.");
-            sender.sendMessage("That world type did not exist.");
-            sender.sendMessage("For a list of available world types, type: /mvenv");
-        } else {
-            sender.sendMessage(ChatColor.RED + "FAILED.");
-            sender.sendMessage("That world folder does not exist...");
-        }
+        issuer.sendMessage(String.format("%sComplete!", ChatColor.GREEN));
    }
 }
@@ -1,249 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.FancyText;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.utils.*;
-import org.bukkit.ChatColor;
-import org.bukkit.Location;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.ArrayList;
-import java.util.List;
-
-// Will use when we can compile with JDK 6
-//import com.sun.xml.internal.ws.util.StringUtils;
-
-public class InfoCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public InfoCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("World Information");
-        this.setCommandUsage("/mv info" + ChatColor.GOLD + " [WORLD] [PAGE]");
-        this.setArgRange(0, 2);
-        this.addKey("mvinfo");
-        this.addKey("mvi");
-        this.addKey("mv info");
-        this.addCommandExample("/mv info " + ChatColor.GOLD + "1");
-        this.addCommandExample("/mv info " + ChatColor.GOLD + "3");
-        this.setPermission("multiverse.core.info", "Returns detailed information on the world.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // Check if the command was sent from a Player.
-        String worldName = "";
-        int pageNum = 0;
-
-        if (args.size() == 0) {
-            if (sender instanceof Player) {
-                Player p = (Player) sender;
-                worldName = p.getWorld().getName();
-            } else {
-                sender.sendMessage("You must enter a" + ChatColor.LIGHT_PURPLE + " world" + ChatColor.WHITE + " from the console!");
-                return;
-            }
-        } else if (args.size() == 1) {
-            if (this.worldManager.getMVWorld(args.get(0)) != null) {
-                // then we have a world!
-                worldName = args.get(0);
-            } else {
-                if (sender instanceof Player) {
-                    Player p = (Player) sender;
-                    worldName = p.getWorld().getName();
-                    try {
-                        pageNum = Integer.parseInt(args.get(0)) - 1;
-                    } catch (NumberFormatException e) {
-                        pageNum = 0;
-                    }
-                } else {
-                    sender.sendMessage("You must enter a" + ChatColor.LIGHT_PURPLE + " world" + ChatColor.WHITE + " from the console!");
-                    return;
-                }
-            }
-        } else if (args.size() == 2) {
-            worldName = args.get(0);
-            try {
-                pageNum = Integer.parseInt(args.get(1)) - 1;
-            } catch (NumberFormatException e) {
-                pageNum = 0;
-            }
-        }
-
-        if (this.worldManager.isMVWorld(worldName)) {
-            Player p = null;
-            if (sender instanceof Player) {
-                p = (Player) sender;
-            }
-            showPage(pageNum, sender, this.buildEntireCommand(this.worldManager.getMVWorld(worldName), p));
-        } else if (this.plugin.getServer().getWorld(worldName) != null) {
-            sender.sendMessage("That world exists, but multiverse does not know about it!");
-            sender.sendMessage("You can import it with" + ChatColor.AQUA + "/mv import " + ChatColor.GREEN + worldName + ChatColor.LIGHT_PURPLE + "{ENV}");
-            sender.sendMessage("For available environments type " + ChatColor.GREEN + "/mv env");
-        }
-    }
-
-    private List<List<FancyText>> buildEntireCommand(MultiverseWorld world, Player p) {
-        List<FancyText> message = new ArrayList<FancyText>();
-        List<List<FancyText>> worldInfo = new ArrayList<List<FancyText>>();
-        // Page 1
-        FancyColorScheme colors = new FancyColorScheme(ChatColor.AQUA, ChatColor.AQUA, ChatColor.GOLD, ChatColor.WHITE);
-        message.add(new FancyHeader("General Info", colors));
-        message.add(new FancyMessage("World Name: ", world.getName(), colors));
-        message.add(new FancyMessage("World Alias: ", world.getColoredWorldString(), colors));
-        String enforced = "";
-        if (!MultiverseCore.EnforceGameModes) {
-            enforced = ChatColor.RED + " Not Enforced!";
-        }
-        message.add(new FancyMessage("Game Mode: ", world.getGameMode() + enforced, colors));
-        //message.add(new FancyMessage("Game Mode: ", StringUtils.capitalize(world.getGameMode().toString()), colors));
-        Location spawn = world.getSpawnLocation();
-        message.add(new FancyMessage("Spawn Location: ", LocationManipulation.strCoords(spawn), colors));
-        message.add(new FancyMessage("World Scale: ", world.getScaling() + "", colors));
-        if (world.getPrice() > 0) {
-            message.add(new FancyMessage("Price to enter this world: ", this.plugin.getBank().getFormattedAmount(p, world.getPrice(), world.getCurrency()), colors));
-        } else {
-            message.add(new FancyMessage("Price to enter this world: ", ChatColor.GREEN + "FREE!", colors));
-        }
-
-        if (world.getRespawnToWorld() != null) {
-            MultiverseWorld respawn = this.worldManager.getMVWorld(world.getRespawnToWorld());
-            if (respawn != null) {
-                message.add(new FancyMessage("Players will respawn in: ", respawn.getColoredWorldString(), colors));
-            } else {
-                message.add(new FancyMessage("Players will respawn in: ", ChatColor.RED + "!!INVALID!!", colors));
-            }
-
-        }
-
-        worldInfo.add(message);
-        // Page 2
-        message = new ArrayList<FancyText>();
-        message.add(new FancyHeader("More World Settings", colors));
-        message.add(new FancyMessage("Difficulty: ", world.getDifficulty().toString(), colors));
-        message.add(new FancyMessage("Weather: ", world.isWeatherEnabled() + "", colors));
-        message.add(new FancyMessage("Players will get hungry: ", world.getHunger() + "", colors));
-        message.add(new FancyMessage("Keep spawn in memory: ", world.isKeepingSpawnInMemory() + "", colors));
-        message.add(new FancyHeader("PVP Settings", colors));
-        message.add(new FancyMessage("Multiverse Setting: ", world.isPVPEnabled() + "", colors));
-        message.add(new FancyMessage("Bukkit Setting: ", world.getCBWorld().getPVP() + "", colors));
-        message.add(new FancyMessage("Fake PVP Enabled: ", world.getFakePVP() + "", colors));
-        worldInfo.add(message);
-        // Page 3
-        message = new ArrayList<FancyText>();
-        message.add(new FancyHeader("Monster Settings", colors));
-        message.add(new FancyMessage("Multiverse Setting: ", world.canMonstersSpawn() + "", colors));
-        message.add(new FancyMessage("Bukkit Setting: ", world.getCBWorld().getAllowMonsters() + "", colors));
-        if (MultiverseCore.MobsDisabledInDefaultWorld) {
-            message.add(new FancyMessage(ChatColor.RED + "WARNING: ", "Monsters WILL NOT SPAWN IN THIS WORLD.", colors));
-            message.add(new FancyMessage(ChatColor.RED + "WARNING: ", "Check your server log for more details.", colors));
-        }
-        if (world.getMonsterList().size() > 0) {
-            if (world.canMonstersSpawn()) {
-                message.add(new FancyMessage("Monsters that" + ChatColor.RED + " CAN NOT " + ChatColor.GREEN + "spawn: ", toCommaSeperated(world.getMonsterList()), colors));
-            } else {
-                message.add(new FancyMessage("Monsters that" + ChatColor.GREEN + " CAN SPAWN: ", toCommaSeperated(world.getMonsterList()), colors));
-            }
-        } else {
-            message.add(new FancyMessage("Monsters that CAN spawn: ", world.canMonstersSpawn() ? "ALL" : "NONE", colors));
-        }
-        worldInfo.add(message);
-
-        // Page 4
-        message = new ArrayList<FancyText>();
-        message.add(new FancyHeader("Animal Settings", colors));
-        message.add(new FancyMessage("Multiverse Setting: ", world.canAnimalsSpawn() + "", colors));
-        message.add(new FancyMessage("Bukkit Setting: ", world.getCBWorld().getAllowAnimals() + "", colors));
-        if (world.getMonsterList().size() > 0) {
-            if (world.canMonstersSpawn()) {
-                message.add(new FancyMessage("Animals that" + ChatColor.RED + " CAN NOT " + ChatColor.GREEN + "spawn: ", toCommaSeperated(world.getAnimalList()), colors));
-            } else {
-                message.add(new FancyMessage("Animals that" + ChatColor.GREEN + " CAN SPAWN: ", toCommaSeperated(world.getAnimalList()), colors));
-            }
-        } else {
-            message.add(new FancyMessage("Animals that CAN spawn: ", world.canAnimalsSpawn() ? "ALL" : "NONE", colors));
-        }
-        worldInfo.add(message);
-
-        return worldInfo;
-    }
-
-    private String toCommaSeperated(List<String> list) {
-        if (list == null || list.size() == 0) {
-            return "";
-        }
-        if (list.size() == 1) {
-            return list.get(0);
-        }
-        String result = list.get(0);
-
-        for (int i = 1; i < list.size() - 1; i++) {
-            result += ", " + list.get(i);
-        }
-        result += " and " + list.get(list.size() - 1);
-        return result;
-    }
-
-    protected ChatColor getChatColor(boolean positive) {
-        return positive ? ChatColor.GREEN : ChatColor.RED;
-    }
-
-    private void showPage(int page, CommandSender sender, List<List<FancyText>> doc) {
-        page = page < 0 ? 0 : page;
-        page = page > doc.size() - 1 ? doc.size() - 1 : page;
-        boolean altColor = false;
-        boolean appendedPageNum = false;
-        if (sender instanceof Player) {
-            List<FancyText> list = doc.get(page);
-            for (FancyText fancyT : list) {
-                if (fancyT instanceof FancyMessage) {
-                    FancyMessage text = (FancyMessage) fancyT;
-                    text.setAltColor(altColor);
-                    altColor = !altColor;
-                    sender.sendMessage(text.getFancyText());
-                } else if (fancyT instanceof FancyHeader) {
-                    FancyHeader text = (FancyHeader) fancyT;
-                    if (!appendedPageNum) {
-                        text.appendText(ChatColor.DARK_PURPLE + " [ Page " + (page + 1) + " of " + doc.size() + " ]");
-                        appendedPageNum = true;
-                    }
-                    sender.sendMessage(text.getFancyText());
-                    altColor = false;
-                }
-            }
-
-        } else {
-            for (List<FancyText> list : doc) {
-                for (FancyText fancyT : list) {
-                    if (fancyT instanceof FancyMessage) {
-                        FancyMessage text = (FancyMessage) fancyT;
-                        text.setAltColor(altColor);
-                        altColor = !altColor;
-                        sender.sendMessage(text.getFancyText());
-                    } else {
-                        FancyText text = fancyT;
-                        if (appendedPageNum) {
-                            sender.sendMessage(" ");
-                        } else {
-                            appendedPageNum = true;
-                        }
-                        sender.sendMessage(text.getFancyText());
-                        altColor = false;
-                    }
-                }
-            }
-        }
-    }
-
-}
@@ -1,73 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import org.bukkit.ChatColor;
-import org.bukkit.World.Environment;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class ListCommand extends MultiverseCommand {
-
-    public ListCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("World Listing");
-        this.setCommandUsage("/mv list");
-        this.setArgRange(0, 0);
-        this.addKey("mvlist");
-        this.addKey("mvl");
-        this.addKey("mv list");
-        this.setPermission("multiverse.core.list.worlds", "Displays a listing of all worlds that you can enter.", PermissionDefault.OP);
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-        String output = ChatColor.LIGHT_PURPLE + "Worlds which you can view:\n";
-        for (MultiverseWorld world : this.plugin.getMVWorldManager().getMVWorlds()) {
-
-            if (p != null && (!this.plugin.getMVPerms().canEnterWorld(p, world))) {
-                continue;
-            }
-
-            ChatColor color = ChatColor.GOLD;
-            Environment env = world.getEnvironment();
-            if (env == Environment.NETHER) {
-                color = ChatColor.RED;
-            } else if (env == Environment.NORMAL) {
-                color = ChatColor.GREEN;
-            } else if (env == Environment.SKYLANDS) {
-                color = ChatColor.AQUA;
-            }
-            String outputCache = world.getColoredWorldString() + ChatColor.WHITE + " - " + color + world.getEnvironment() + " \n";
-            if (world.isHidden()) {
-                // TODO: Add an actual permission for this.
-                if (p == null || p.isOp()) {
-                    // Prefix hidden worlds with an "[H]"
-                    outputCache = ChatColor.GRAY + "[H]" + outputCache;
-                    output += outputCache;
-                }
-            } else {
-                output += outputCache;
-            }
-        }
-        String[] response = output.split("\n");
-        for (String msg : response) {
-            sender.sendMessage(msg);
-        }
-    }
-}
@@ -1,38 +1,42 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Single;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;

-import java.util.List;
-
-public class LoadCommand extends MultiverseCommand {
-
-    public LoadCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class LoadCommand extends MultiverseCoreCommand {
+    public LoadCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Load World");
-        this.setCommandUsage("/mv load" + ChatColor.GREEN + " {WORLD}");
-        this.setArgRange(1, 1);
-        this.addKey("mvload");
-        this.addKey("mv load");
-        this.addCommandExample("/mv load " + ChatColor.GREEN + "MyUnloadedWorld");
-        this.setPermission("multiverse.core.load", "Loads a world into Multiverse.", PermissionDefault.OP);
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (this.plugin.getMVWorldManager().loadWorld(args.get(0))) {
-            sender.sendMessage("World Loaded!");
-        } else {
-            sender.sendMessage("Error trying to load world!");
+    @Subcommand("load")
+    @CommandPermission("multiverse.core.load")
+    @CommandCompletion("@mvworlds:scope=unloaded")
+    @Syntax("<world>")
+    @Description("Loads a world. World must be already in worlds.yml, else please use /mv import.")
+    public void onLoadCommand(BukkitCommandIssuer issuer,
+
+                              @Single
+                              @Conditions("validWorldName:scope=unloaded")
+                              @Syntax("<world>")
+                              @Description("Name of world you want to load.")
+                              String worldName
+    ) {
+        issuer.sendMessage(String.format("Loading world '%s'...", worldName));
+
+        if (!this.plugin.getMVWorldManager().loadWorld(worldName)) {
+            issuer.sendMessage(String.format("Error trying to load world '%s'!", worldName));
+            return;
        }
+        issuer.sendMessage(String.format("Loaded world '%s'!", worldName));
    }
 }
@@ -1,86 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.enums.Action;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-// This will contain all the properties that support the ADD/REMOVE
-// Anything not in here will only support the SET action
-
-public class ModifyAddCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public ModifyAddCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Modify a World (Add a value)");
-        this.setCommandUsage("/mv modify " + ChatColor.GREEN + "add {VALUE} {PROPERTY}" + ChatColor.GOLD + " [WORLD] ");
-        this.setArgRange(2, 3);
-        this.addKey("mvm add");
-        this.addKey("mvmadd");
-        this.addKey("mv modify add");
-        this.addKey("mvmodify add");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "add " + ChatColor.GREEN + "sheep " + ChatColor.RED + "animals");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "add " + ChatColor.GREEN + "creeper " + ChatColor.RED + "monsters");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "add " + ChatColor.GREEN + "MyWorld " + ChatColor.RED + "worldblacklist");
-        this.setPermission("multiverse.core.modify.add", "Modify various aspects of worlds. See the help wiki for how to use this command properly. If you do not include a world, the current world will be used.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // We NEED a world from the command line
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-        if (args.size() == 2 && p == null) {
-            sender.sendMessage(ChatColor.RED + "From the console, WORLD is required.");
-            sender.sendMessage(this.getCommandDesc());
-            sender.sendMessage(this.getCommandUsage());
-            sender.sendMessage("Nothing changed.");
-            return;
-        }
-
-        MultiverseWorld world;
-        String value = args.get(0);
-        String property = args.get(1);
-
-        if (args.size() == 2) {
-            world = this.worldManager.getMVWorld(p.getWorld().getName());
-        } else {
-            world = this.worldManager.getMVWorld(args.get(2));
-        }
-
-        if (world == null) {
-            sender.sendMessage("That world does not exist!");
-            return;
-        }
-
-        if (!ModifyCommand.validateAction(Action.Add, property)) {
-            sender.sendMessage("Sorry, you can't ADD to " + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/4W8cY");
-            return;
-        }
-
-        if (world.addToVariable(property, value)) {
-            sender.sendMessage(ChatColor.GREEN + "Success! " + ChatColor.AQUA + value + ChatColor.WHITE + " was " + ChatColor.GREEN + "added to " + ChatColor.GREEN + property);
-        } else {
-            sender.sendMessage(value + " could not be added to " + property);
-        }
-    }
-}
@@ -1,82 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.enums.Action;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class ModifyClearCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public ModifyClearCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Modify a World (Clear a property)");
-        this.setCommandUsage("/mv modify" + ChatColor.GREEN + " clear {PROPERTY}" + ChatColor.GOLD + " [WORLD]");
-        this.setArgRange(1, 2);
-        this.addKey("mvm clear");
-        this.addKey("mvmclear");
-        this.addKey("mv modify clear");
-        this.addKey("mvmodify clear");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "clear " + ChatColor.RED + "animals");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "clear " + ChatColor.RED + "monsters");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "clear " + ChatColor.RED + "worldblacklist");
-        this.setPermission("multiverse.core.modify.clear", "Removes all values from a property. This will work on properties that contain lists.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // We NEED a world from the command line
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-        if (args.size() == 1 && p == null) {
-            sender.sendMessage(ChatColor.RED + "From the console, WORLD is required.");
-            sender.sendMessage(this.getCommandDesc());
-            sender.sendMessage(this.getCommandUsage());
-            sender.sendMessage("Nothing changed.");
-            return;
-        }
-
-        MultiverseWorld world;
-        String property = args.get(0);
-
-        if (args.size() == 1) {
-            world = this.worldManager.getMVWorld(p.getWorld().getName());
-        } else {
-            world = this.worldManager.getMVWorld(args.get(1));
-        }
-
-        if (world == null) {
-            sender.sendMessage("That world does not exist!");
-            return;
-        }
-
-        if (!ModifyCommand.validateAction(Action.Clear, property)) {
-            sender.sendMessage("Sorry, you can't use CLEAR with " + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/cgB2B");
-            return;
-        }
-        if (world.clearList(property)) {
-            sender.sendMessage(property + " was cleared. It contains 0 values now.");
-            sender.sendMessage(ChatColor.GREEN + "Success! " + ChatColor.AQUA + property + ChatColor.WHITE + " was " + ChatColor.GREEN + "CLEARED" + ChatColor.WHITE + ". It contains " + ChatColor.LIGHT_PURPLE + "0" + ChatColor.WHITE + " values now.");
-        } else {
-            sender.sendMessage(ChatColor.RED + "Error: " + ChatColor.GOLD + property + ChatColor.WHITE + " was " + ChatColor.GOLD + "NOT" + ChatColor.WHITE + " cleared.");
-        }
-    }
-
-}
@@ -1,68 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.enums.Action;
-import com.onarandombox.MultiverseCore.enums.AddProperties;
-import com.onarandombox.MultiverseCore.enums.SetProperties;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.Permission;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-public class ModifyCommand extends MultiverseCommand {
-
-    public ModifyCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Modify a World");
-        this.setCommandUsage("/mv modify" + ChatColor.GREEN + " {set|add|remove|clear} ...");
-        this.setArgRange(2, 3);
-        this.addKey("mvm");
-        this.addKey("mvmodify");
-        this.addKey("mv modify");
-        Map<String, Boolean> children = new HashMap<String, Boolean>();
-        children.put("multiverse.core.modify.add", true);
-        children.put("multiverse.core.modify.modify", true);
-        children.put("multiverse.core.modify.clear", true);
-        children.put("multiverse.core.modify.remove", true);
-        Permission modify = new Permission("multiverse.core.modify", "Modify various aspects of worlds. See the help wiki for how to use this command properly. If you do not include a world, the current world will be used.", PermissionDefault.OP, children);
-        this.setPermission(modify);
-    }
-
-    protected static boolean validateAction(Action action, String property) {
-        if (action == Action.Set) {
-            try {
-                SetProperties.valueOf(property);
-                return true;
-            } catch (IllegalArgumentException e) {
-                return false;
-            }
-        } else {
-            try {
-                AddProperties.valueOf(property);
-                return true;
-            } catch (IllegalArgumentException e) {
-                return false;
-            }
-        }
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // This is just a place holder. The real commands are in:
-        // ModifyAddCommand
-        // ModifyRemoveCommand
-        // ModifySetCommand
-        // ModifyClearCommand
-    }
-}
@@ -1,87 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.enums.Action;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class ModifyRemoveCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public ModifyRemoveCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Modify a World (Remove a value)");
-        this.setCommandUsage("/mv modify" + ChatColor.GREEN + " remove {PROPERTY} {VALUE}" + ChatColor.GOLD + " [WORLD]");
-        this.setArgRange(2, 3);
-        this.addKey("mvm remove");
-        this.addKey("mvmremove");
-        this.addKey("mv modify remove");
-        this.addKey("mvmodify remove");
-        this.addKey("mvm delete");
-        this.addKey("mvmdelete");
-        this.addKey("mv modify delete");
-        this.addKey("mvmodify delete");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "remove " + ChatColor.GREEN + "sheep " + ChatColor.RED + "animals");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "remove " + ChatColor.GREEN + "creeper " + ChatColor.RED + "monsters");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "remove " + ChatColor.GREEN + "MyWorld " + ChatColor.RED + "worldblacklist");
-        this.setPermission("multiverse.core.modify.remove", "Modify various aspects of worlds. See the help wiki for how to use this command properly. If you do not include a world, the current world will be used.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // We NEED a world from the command line
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-        if (args.size() == 2 && p == null) {
-            sender.sendMessage(ChatColor.RED + "From the console, WORLD is required.");
-            sender.sendMessage(this.getCommandDesc());
-            sender.sendMessage(this.getCommandUsage());
-            sender.sendMessage("Nothing changed.");
-            return;
-        }
-
-        MultiverseWorld world;
-        String value = args.get(0);
-        String property = args.get(1);
-
-        if (args.size() == 2) {
-            world = this.worldManager.getMVWorld(p.getWorld().getName());
-        } else {
-            world = this.worldManager.getMVWorld(args.get(2));
-        }
-
-        if (world == null) {
-            sender.sendMessage("That world does not exist!");
-            return;
-        }
-
-        if (!ModifyCommand.validateAction(Action.Remove, property)) {
-            sender.sendMessage("Sorry, you can't REMOVE anything from" + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/4W8cY");
-            return;
-        }
-        if (world.removeFromVariable(property, value)) {
-            sender.sendMessage(ChatColor.GREEN + "Success! " + ChatColor.AQUA + value + ChatColor.WHITE + " was " + ChatColor.RED + "removed from " + ChatColor.GREEN + property);
-        } else {
-            sender.sendMessage(ChatColor.RED + "There was an error removing " + ChatColor.GRAY + value + ChatColor.WHITE + " from " + ChatColor.GOLD + property);
-        }
-    }
-
-}
@@ -1,109 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.enums.Action;
-import com.onarandombox.MultiverseCore.enums.EnglishChatColor;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class ModifySetCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public ModifySetCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Modify a World (Set a value)");
-        this.setCommandUsage("/mv modify" + ChatColor.GREEN + " set {PROPERTY} {VALUE}" + ChatColor.GOLD + " [WORLD]");
-        this.setArgRange(1, 3);
-        this.addKey("mvm set");
-        this.addKey("mvmset");
-        this.addKey("mv modify set");
-        this.addKey("mvmodify set");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "mode " + ChatColor.RED + "creative");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "animals " + ChatColor.RED + "false");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "monsters " + ChatColor.RED + "false");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "alias " + ChatColor.RED + "MyWorld");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "color " + ChatColor.RED + "green");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "curr " + ChatColor.RED + "3");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "price " + ChatColor.RED + "5");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "scale " + ChatColor.RED + "1.2");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "memory " + ChatColor.RED + "true");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "diff " + ChatColor.RED + "hard");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "hunger " + ChatColor.RED + "false");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "hidden " + ChatColor.RED + "true");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "pvp " + ChatColor.RED + "false");
-        this.addCommandExample("/mvm " + ChatColor.GOLD + "set " + ChatColor.GREEN + "spawn");
-        this.setPermission("multiverse.core.modify.set", "Modify various aspects of worlds. See the help wiki for how to use this command properly. If you do not include a world, the current world will be used.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // Special case for spawn:
-        if (args.size() == 1) {
-            if (args.get(0).equalsIgnoreCase("spawn")) {
-                SetSpawnCommand c = new SetSpawnCommand(this.plugin);
-                c.setWorldSpawn(sender);
-
-            } else {
-                sender.sendMessage("Spawn is the only param with no" + ChatColor.GREEN + " VALUE");
-                sender.sendMessage("Type " + ChatColor.GREEN + "/mv modify ?" + ChatColor.WHITE + " For help.");
-            }
-            return;
-        }
-        // We NEED a world from the command line
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-        if (args.size() == 2 && p == null) {
-            sender.sendMessage("From the command line, WORLD is required.");
-            sender.sendMessage(this.getCommandDesc());
-            sender.sendMessage(this.getCommandUsage());
-            sender.sendMessage("Nothing changed.");
-            return;
-        }
-
-        MultiverseWorld world;
-        String value = args.get(1);
-        String property = args.get(0);
-
-        if (args.size() == 2) {
-            world = this.worldManager.getMVWorld(p.getWorld().getName());
-        } else {
-            world = this.worldManager.getMVWorld(args.get(2));
-        }
-
-        if (world == null) {
-            sender.sendMessage("That world does not exist!");
-            return;
-        }
-
-        if (!ModifyCommand.validateAction(Action.Set, property)) {
-            sender.sendMessage("Sorry, you can't SET " + property);
-            sender.sendMessage("Please visit our Github Wiki for more information: http://goo.gl/l54PH");
-            return;
-        }
-        if ((property.equalsIgnoreCase("aliascolor") || property.equalsIgnoreCase("color")) && !world.isValidAliasColor(value)) {
-            sender.sendMessage(value + " is not a valid color. Please pick one of the following:");
-            sender.sendMessage(EnglishChatColor.getAllColors());
-        } else if (world.setVariable(property, value)) {
-            sender.sendMessage(ChatColor.GREEN + "Success!" + ChatColor.WHITE + " Property " + ChatColor.AQUA + property + ChatColor.WHITE + " was set to " + ChatColor.GREEN + value);
-        } else {
-            sender.sendMessage(ChatColor.RED + "There was an error setting " + ChatColor.GRAY + property);
-        }
-    }
-}
@@ -0,0 +1,20 @@
+package com.onarandombox.MultiverseCore.commands;
+
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MVWorldManager;
+import com.onarandombox.MultiverseCore.commandtools.MultiverseCommand;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * A base command for Multiverse.
+ */
+abstract class MultiverseCoreCommand extends MultiverseCommand {
+    protected final MultiverseCore plugin;
+    protected final MVWorldManager worldManager;
+
+    protected MultiverseCoreCommand(@NotNull MultiverseCore plugin) {
+        super(plugin);
+        this.plugin = plugin;
+        this.worldManager = plugin.getMVWorldManager();
+    }
+}
@@ -1,92 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.utils.PurgeWorlds;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-public class PurgeCommand extends MultiverseCommand {
-    private WorldManager worldManager;
-
-    public PurgeCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Purge World of Creatures");
-        this.setCommandUsage("/mv purge" + ChatColor.GOLD + " [WORLD|all] " + ChatColor.GREEN + "{all|animals|monsters|MOBNAME}");
-        this.setArgRange(1, 2);
-        this.addKey("mvpurge");
-        this.addKey("mv purge");
-        this.addCommandExample("/mv purge " + ChatColor.GREEN + "all");
-        this.addCommandExample("/mv purge " + ChatColor.GOLD + "all " + ChatColor.GREEN + "all");
-        this.addCommandExample("/mv purge " + ChatColor.GREEN + "monsters");
-        this.addCommandExample("/mv purge " + ChatColor.GOLD + "all " + ChatColor.GREEN + "animals");
-        this.addCommandExample("/mv purge " + ChatColor.GOLD + "MyWorld " + ChatColor.GREEN + "squid");
-        this.addCommandExample("/mv purge " + ChatColor.GOLD + "MyWorld_nether " + ChatColor.GREEN + "ghast");
-        this.setPermission("multiverse.core.purge", "Removed the specified type of mob from the specified world.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-        if (args.size() == 1 && p == null) {
-            sender.sendMessage("This command requires a WORLD when being run from the console!");
-            sender.sendMessage(this.getCommandUsage());
-            return;
-        }
-        String worldName = null;
-        String deathName = null;
-        if (args.size() == 1) {
-            worldName = p.getWorld().getName();
-            deathName = args.get(0);
-        } else {
-            worldName = args.get(0);
-            deathName = args.get(1);
-        }
-
-        if (!worldName.equalsIgnoreCase("all") && !this.worldManager.isMVWorld(worldName)) {
-            ((MultiverseCore) this.plugin).showNotMVWorldMessage(sender, worldName);
-            sender.sendMessage("It cannot be purged.");
-            return;
-        }
-
-        List<MultiverseWorld> worldsToRemoveEntitiesFrom = new ArrayList<MultiverseWorld>();
-        // Handle all case any user who names a world "all" should know better...
-        if (worldName.equalsIgnoreCase("all")) {
-            worldsToRemoveEntitiesFrom.addAll(this.worldManager.getMVWorlds());
-        } else {
-            worldsToRemoveEntitiesFrom.add(this.worldManager.getMVWorld(worldName));
-        }
-
-        PurgeWorlds purger = this.worldManager.getWorldPurger();
-        ArrayList<String> thingsToKill = new ArrayList<String>();
-        if (deathName.equalsIgnoreCase("all") || deathName.equalsIgnoreCase("animals") || deathName.equalsIgnoreCase("monsters")) {
-            thingsToKill.add(deathName.toUpperCase());
-        } else {
-            Collections.addAll(thingsToKill, deathName.toUpperCase().split(","));
-        }
-        for (MultiverseWorld w : worldsToRemoveEntitiesFrom) {
-            purger.purgeWorld(sender, w, thingsToKill, false, false);
-        }
-
-        return;
-    }
-
-}
@@ -0,0 +1,79 @@
+package com.onarandombox.MultiverseCore.commands;
+
+import java.util.Collections;
+import java.util.Random;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Optional;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlag;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlagGroup;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandValueFlag;
+import com.onarandombox.MultiverseCore.commandtools.flags.ParsedCommandFlags;
+import com.onarandombox.MultiverseCore.commandtools.queue.QueuedCommand;
+import org.bukkit.ChatColor;
+import org.jetbrains.annotations.NotNull;
+
+@CommandAlias("mv")
+public class RegenCommand extends MultiverseCoreCommand {
+    public RegenCommand(@NotNull MultiverseCore plugin) {
+        super(plugin);
+
+        registerFlagGroup(CommandFlagGroup.builder("mvregen")
+                .add(CommandValueFlag.builder("--seed", String.class)
+                        .addAlias("-s")
+                        .completion(() -> Collections.singleton(String.valueOf(new Random().nextLong())))
+                        .optional()
+                        .build())
+                .add(CommandFlag.builder("--keep-gamerules")
+                        .addAlias("-k")
+                        .build())
+                .build());
+    }
+
+    @Subcommand("regen")
+    @CommandPermission("multiverse.core.regen")
+    @CommandCompletion("@mvworlds:scope=both @flags:groupName=mvregen")
+    @Syntax("<world> --seed [seed] --keep-gamerules")
+    @Description("Regenerates a world on your server. The previous state will be lost PERMANENTLY.")
+    public void onRegenCommand(BukkitCommandIssuer issuer,
+
+                               @Conditions("validWorldName:scope=both")
+                               @Syntax("<world>")
+                               @Description("World that you want to regen.")
+                               String worldName,
+
+                               @Optional
+                               @Syntax("--seed [seed] --keep-gamerules")
+                               @Description("Other world settings. See: http://gg.gg/nn8lk")
+                               String[] flags
+    ) {
+        ParsedCommandFlags parsedFlags = parseFlags(flags);
+
+        this.plugin.getMVCommandManager().getCommandQueueManager().addToQueue(new QueuedCommand(
+                issuer.getIssuer(),
+                () -> {
+                    issuer.sendMessage(String.format("Regenerating world '%s'...", worldName));
+                    if (!this.plugin.getMVWorldManager().regenWorld(
+                            worldName,
+                            parsedFlags.hasFlag("--seed"),
+                            !parsedFlags.hasFlagValue("--seed"),
+                            parsedFlags.flagValue("--seed", String.class),
+                            parsedFlags.hasFlag("--keep-gamerules")
+                    )) {
+                        issuer.sendMessage(String.format("%sThere was an issue regenerating '%s'! Please check console for errors.", ChatColor.RED, worldName));
+                        return;
+                    }
+                    issuer.sendMessage(String.format("%sWorld %s was regenerated!", ChatColor.GREEN, worldName));
+                },
+                "Are you sure you want to regenerate world '" + worldName + "'?"
+        ));
+    }
+}
@@ -1,52 +1,42 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.event.MVConfigReloadEvent;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
-
 import java.util.ArrayList;
 import java.util.List;

-public class ReloadCommand extends MultiverseCommand {
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Subcommand;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.event.MVConfigReloadEvent;
+import org.bukkit.ChatColor;
+import org.jetbrains.annotations.NotNull;

-    public ReloadCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class ReloadCommand extends MultiverseCoreCommand {
+    public ReloadCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Reload Configs");
-        this.setCommandUsage("/mv reload");
-        this.setArgRange(0, 0);
-        this.addKey("mvreload");
-        this.addKey("mv reload");
-        this.addCommandExample("/mv reload");
-        this.setPermission("multiverse.core.reload", "Reloads worlds.yml and config.yml.", PermissionDefault.OP);
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        sender.sendMessage(ChatColor.GOLD + "Reloading all Multiverse Plugin configs...");
+    @Subcommand("reload")
+    @CommandPermission("multiverse.core.reload")
+    @Description("Reloads config files for all multiverse modules.")
+    public void onReloadCommand(@NotNull BukkitCommandIssuer issuer) {
+        issuer.sendMessage(ChatColor.GOLD + "Reloading all Multiverse Plugin configs...");
        this.plugin.loadConfigs();
+        this.plugin.getAnchorManager().loadAnchors();
        this.plugin.getMVWorldManager().loadWorlds(true);

-        List<String> configsLoaded = new ArrayList<String>();
+        List<String> configsLoaded = new ArrayList<>();
        configsLoaded.add("Multiverse-Core - config.yml");
        configsLoaded.add("Multiverse-Core - worlds.yml");
-        // Create the event
+        configsLoaded.add("Multiverse-Core - anchors.yml");
+
        MVConfigReloadEvent configReload = new MVConfigReloadEvent(configsLoaded);
-        // Fire it off
        this.plugin.getServer().getPluginManager().callEvent(configReload);
-        for (String s : configReload.getAllConfigsLoaded()) {
-            sender.sendMessage(s);
-        }

-        sender.sendMessage(ChatColor.GREEN + "Reload Complete!");
+        configReload.getAllConfigsLoaded().forEach(issuer::sendMessage);
+        issuer.sendMessage(String.format("%sReload Complete!", ChatColor.GREEN));
    }
-
 }
@@ -1,38 +1,41 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Conditions;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Single;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import org.jetbrains.annotations.NotNull;

-import java.util.List;
-
-public class RemoveCommand extends MultiverseCommand {
-
-    public RemoveCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class RemoveCommand extends MultiverseCoreCommand {
+    public RemoveCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Remove World");
-        this.setCommandUsage("/mv remove" + ChatColor.GREEN + " {WORLD}");
-        this.setArgRange(1, 1);
-        this.addKey("mvremove");
-        this.addKey("mv remove");
-        this.addCommandExample("/mv remove " + ChatColor.GREEN + "MyWorld");
-        this.setPermission("multiverse.core.remove", "Unloads a world from Multiverse and removes it from worlds.yml, this does NOT DELETE the world folder.", PermissionDefault.OP);
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (this.plugin.getMVWorldManager().removeWorldFromConfig(args.get(0))) {
-            sender.sendMessage("World removed from config!");
-        } else {
-            sender.sendMessage("Error trying to remove world from config!");
+    @Subcommand("remove")
+    @CommandPermission("multiverse.core.remove")
+    @CommandCompletion("@mvworlds:scope=both")
+    @Syntax("<world>")
+    @Description("Unloads a world from Multiverse and removes it from worlds.yml, this does NOT DELETE the world folder.")
+    public void onRemoveCommand(BukkitCommandIssuer issuer,
+
+                                @Single
+                                @Conditions("mvworlds:scope=both")
+                                @Syntax("<world>")
+                                @Description("World you want to remove from mv's knowledge.")
+                                String worldName
+    ) {
+        if (!this.plugin.getMVWorldManager().removeWorldFromConfig(worldName)) {
+            issuer.sendMessage(String.format("%sError trying to remove world from config!", ChatColor.RED));
+            return;
        }
+        issuer.sendMessage(String.format("World '%s' is removed from config!", worldName));
    }
 }
@@ -1,60 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.utils.LocationManipulation;
-import org.bukkit.Location;
-import org.bukkit.World;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class SetSpawnCommand extends MultiverseCommand {
-
-    public SetSpawnCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Set World Spawn");
-        this.setCommandUsage("/mv setspawn");
-        this.setArgRange(0, 0);
-        this.addKey("mvsetspawn");
-        this.addKey("mvss");
-        this.addKey("mv set spawn");
-        this.addKey("mv setspawn");
-        this.addKey("mvset spawn");
-        this.addCommandExample("/mv set spawn");
-        this.setPermission("multiverse.core.spawn.set", "Sets the spawn for the current world.", PermissionDefault.OP);
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        setWorldSpawn(sender);
-    }
-
-    protected void setWorldSpawn(CommandSender sender) {
-        if (sender instanceof Player) {
-            Player p = (Player) sender;
-            Location l = p.getLocation();
-            World w = p.getWorld();
-            MultiverseWorld foundWorld = this.plugin.getMVWorldManager().getMVWorld(w.getName());
-            if (foundWorld != null) {
-                foundWorld.setSpawnLocation(p.getLocation());
-                sender.sendMessage("Spawn was set to: " + LocationManipulation.strCoords(p.getLocation()));
-            } else {
-                w.setSpawnLocation(l.getBlockX(), l.getBlockY(), l.getBlockZ());
-                sender.sendMessage("Multiverse does not know about this world, only X,Y and Z set. Please import it to set the spawn fully (Pitch/Yaws).");
-            }
-
-        } else {
-            sender.sendMessage("You cannot use this command from the console.");
-        }
-    }
-}
@@ -1,39 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class SleepCommand extends MultiverseCommand {
-
-    public SleepCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Go to Sleep");
-        this.setCommandUsage("/mv sleep");
-        this.setArgRange(0, 0);
-        this.addKey("mv sleep");
-        this.setPermission("multiverse.core.sleep", "Takes you the latest bed you've slept in (Currently BROKEN).", PermissionDefault.OP);
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-        if (p == null) {
-            return;
-        }
-    }
-}
@@ -1,86 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import org.bukkit.ChatColor;
-import org.bukkit.Location;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.Permission;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.List;
-
-public class SpawnCommand extends MultiverseCommand {
-
-    public SpawnCommand(MultiverseCore plugin) {
-        super(plugin);
-        Permission otherPerm = new Permission("multiverse.core.spawn.other", "Teleports another player to the spawn of the world they are in.", PermissionDefault.OP);
-        this.setName("Spawn");
-        this.setCommandUsage("/mv spawn" + ChatColor.GOLD + " [PLAYER]");
-        this.setArgRange(0, 1);
-        this.addKey("mvspawn");
-        this.addKey("mv spawn");
-        this.addKey("mvs");
-        this.setPermission("multiverse.core.spawn.self", "Teleports you to the Spawn Point of the world you are in.", PermissionDefault.OP);
-        this.addAdditonalPermission(otherPerm);
-
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        Player player = null;
-        if (sender instanceof Player) {
-            player = (Player) sender;
-        }
-        // If a persons name was passed in, you must be A. the console, or B have permissions
-        if (args.size() == 1) {
-            if (player != null && !this.plugin.getMVPerms().hasPermission(player, "multiverse.core.spawn.other", true)) {
-                sender.sendMessage("You don't have permission to teleport another player to spawn. (multiverse.core.spawn.other)");
-                return;
-            }
-            Player target = this.plugin.getServer().getPlayer(args.get(0));
-            if (target != null) {
-                target.sendMessage("Teleporting to this world's spawn...");
-                spawnAccurately(target);
-
-                if (player != null) {
-                    target.sendMessage("You were teleported by: " + ChatColor.YELLOW + player.getName());
-                } else {
-                    target.sendMessage("You were teleported by: " + ChatColor.LIGHT_PURPLE + "the console");
-                }
-            } else {
-                sender.sendMessage(args.get(0) + " is not logged on right now!");
-            }
-        } else {
-            if (player != null && !this.plugin.getMVPerms().hasPermission(player, "multiverse.core.spawn.self", true)) {
-                sender.sendMessage("You don't have permission to teleport yourself to spawn. (multiverse.core.spawn.self)");
-                return;
-            }
-            if (player != null) {
-                player.sendMessage("Teleporting to this world's spawn...");
-                spawnAccurately(player);
-            } else {
-                sender.sendMessage("From the console, you must provide a PLAYER.");
-            }
-        }
-    }
-
-    private void spawnAccurately(Player player) {
-        MultiverseWorld world = this.plugin.getMVWorldManager().getMVWorld(player.getWorld().getName());
-        Location spawnLocation;
-        if (world != null) {
-            spawnLocation = world.getSpawnLocation();
-        } else {
-            spawnLocation = player.getWorld().getSpawnLocation();
-        }
-        this.plugin.getTeleporter().safelyTeleport(player, player, spawnLocation, false);
-    }
-}
@@ -1,59 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-import org.getspout.spoutapi.gui.GenericButton;
-import org.getspout.spoutapi.gui.GenericPopup;
-import org.getspout.spoutapi.gui.PopupScreen;
-import org.getspout.spoutapi.player.SpoutPlayer;
-
-import java.util.List;
-
-public class SpoutCommand extends MultiverseCommand {
-
-    public SpoutCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Edit World with Spout");
-        this.setCommandUsage("/mv spout");
-        this.setArgRange(0, 0);
-        this.addKey("mv spout");
-        this.setPermission("multiverse.core.spout", "Edit a world with spout.", PermissionDefault.OP);
-        this.addCommandExample("/mv spout");
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "This command must be run as a player!");
-            return;
-        }
-        if (plugin.getSpout() == null) {
-            sender.sendMessage(ChatColor.RED + "You need spout installed on this server to use it with Multiverse!");
-            return;
-        }
-        SpoutPlayer p = (SpoutPlayer) sender;
-        if (!p.isSpoutCraftEnabled()) {
-            sender.sendMessage(ChatColor.RED + p.getName() + "You need to be using the Spoutcraft client to run this command!");
-            return;
-        }
-        PopupScreen pop = new GenericPopup();
-        GenericButton button = new GenericButton("Fish");
-        button.setX(50);
-        button.setY(50);
-        button.setWidth(100);
-        button.setHeight(40);
-        pop.attachWidget(this.plugin, button);
-        sender.sendMessage(ChatColor.GREEN + "YAY!");
-        p.getMainScreen().attachPopupScreen(pop);
-    }
-}
@@ -1,182 +1,49 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.CommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Flags;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MVDestination;
-import com.onarandombox.MultiverseCore.destination.DestinationFactory;
-import com.onarandombox.MultiverseCore.destination.InvalidDestination;
-import com.onarandombox.MultiverseCore.destination.WorldDestination;
-import com.onarandombox.MultiverseCore.event.MVTeleportEvent;
-import com.onarandombox.MultiverseCore.utils.LocationManipulation;
-import com.onarandombox.MultiverseCore.utils.MVMessaging;
-import com.onarandombox.MultiverseCore.utils.SafeTTeleporter;
-import org.bukkit.ChatColor;
-import org.bukkit.Location;
-import org.bukkit.World;
-import org.bukkit.command.CommandSender;
+import com.onarandombox.MultiverseCore.destination.ParsedDestination;
 import org.bukkit.entity.Player;
-import org.bukkit.permissions.Permission;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.logging.Level;
-
-public class TeleportCommand extends MultiverseCommand {
-    private SafeTTeleporter playerTeleporter;

+@CommandAlias("mv")
+public class TeleportCommand extends MultiverseCoreCommand {
    public TeleportCommand(MultiverseCore plugin) {
        super(plugin);
-        Permission menu = new Permission("multiverse.teleport.*", "Allows you to display the teleport menu.", PermissionDefault.OP);
+    }

-        this.setName("Teleport");
-        this.setCommandUsage("/mv tp " + ChatColor.GOLD + "[PLAYER]" + ChatColor.GREEN + " {WORLD}");
-        this.setArgRange(1, 2);
-        this.addKey("mvtp");
-        this.addKey("mv tp");
-        this.playerTeleporter = new SafeTTeleporter(this.plugin);
-        this.setPermission(menu);
+    @Subcommand("teleport|tp")
+    @CommandCompletion("@players|@mvworlds:playerOnly|@destinations:playerOnly @mvworlds|@destinations")
+    @Syntax("[player] <destination>")
+    @Description("Allows you to the teleport to a location on your server!")
+    public void onTeleportCommand(BukkitCommandIssuer issuer,
+
+                                  @Flags("resolve=issuerAware")
+                                  @Syntax("[player]")
+                                  @Description("Target player to teleport.")
+                                  Player[] players,
+
+                                  @Syntax("<destination>")
+                                  @Description("Location, can be a world name.")
+                                  ParsedDestination<?> destination
+    ) {
+        // TODO Add warning if teleporting too many players at once.
+        for (Player player : players) {
+            issuer.sendMessage("Teleporting "
+                    + (issuer.getPlayer() == player ? "you" : player.getName())
+                    + " to " + destination + "...");
+            this.plugin.getDestinationsProvider().playerTeleport(issuer, player, destination);
+        }
    }

    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // Check if the command was sent from a Player.
-        CommandSender teleporter = sender;
-        Player teleportee = null;
-        if (sender instanceof Player) {
-            teleporter = (Player) sender;
-        }
-
-        String destinationName;
-
-        if (args.size() == 2) {
-            teleportee = this.plugin.getServer().getPlayer(args.get(0));
-            if (teleportee == null) {
-                sender.sendMessage("Sorry, I couldn't find player: " + args.get(0));
-                return;
-            }
-            destinationName = args.get(1);
-
-        } else {
-            destinationName = args.get(0);
-            if (!(sender instanceof Player)) {
-                sender.sendMessage("From the console, you must specify a player to teleport");
-                return;
-            }
-            teleportee = (Player) sender;
-        }
-        // Special case for cannons:
-        if (destinationName.matches("(?i)cannon-[\\d]+(\\.[\\d]+)?")) {
-            String[] cannonSpeed = destinationName.split("-");
-            try {
-                double speed = Double.parseDouble(cannonSpeed[1]);
-                destinationName = "ca:" + teleportee.getWorld().getName() + ":" + teleportee.getLocation().getX() + "," + teleportee.getLocation().getY() + "," + teleportee.getLocation().getZ() + ":" + teleportee.getLocation().getPitch() + ":" + teleportee.getLocation().getYaw() + ":" + speed;
-            } catch (Exception e) {
-                destinationName = "i:invalid";
-            }
-
-        }
-        DestinationFactory df = this.plugin.getDestFactory();
-        MVDestination d = df.getDestination(destinationName);
-
-
-        MVTeleportEvent teleportEvent = new MVTeleportEvent(d, teleportee, teleporter, true);
-        this.plugin.getServer().getPluginManager().callEvent(teleportEvent);
-        if (teleportEvent.isCancelled()) {
-            this.plugin.log(Level.FINE, "Someone else cancelled the MVTeleport Event!!!");
-            return;
-        }
-
-        if (d != null && d instanceof InvalidDestination) {
-            sender.sendMessage("Multiverse does not know how to take you to: " + ChatColor.RED + destinationName);
-            return;
-        }
-
-        if (!this.checkSendPermissions(teleporter, teleportee, d)) {
-            return;
-        }
-
-        if (MultiverseCore.EnforceAccess && teleporter != null && !this.plugin.getMVPerms().canEnterDestination(teleporter, d)) {
-            if (teleportee.equals(teleporter)) {
-                teleporter.sendMessage("Doesn't look like you're allowed to go " + ChatColor.RED + "there...");
-            } else {
-                teleporter.sendMessage("Doesn't look like you're allowed to send " + ChatColor.GOLD + teleportee.getName() + ChatColor.WHITE + " to " + ChatColor.RED + "there...");
-            }
-            return;
-        } else if (teleporter != null && !this.plugin.getMVPerms().canTravelFromLocation(teleporter, d.getLocation(teleportee))) {
-            if (teleportee.equals(teleporter)) {
-                teleporter.sendMessage("DOH! Doesn't look like you can get to " + ChatColor.RED + "THERE from " + ChatColor.GREEN + ((Player) teleporter).getWorld().getName());
-            } else {
-                teleporter.sendMessage("DOH! Doesn't look like " + ChatColor.GREEN + ((Player) teleporter).getWorld().getName() + " can get to " + ChatColor.RED + "THERE from where they are...");
-            }
-            return;
-        }
-
-        // Special check to verify if players are tryint to teleport to the same
-        // WORLDDestination as the world they're in, that they ALSO have multiverse.core.spawn.self
-
-        if (d instanceof WorldDestination) {
-            World w = d.getLocation(teleportee).getWorld();
-            if (teleportee.getWorld().equals(w)) {
-                if (teleporter.equals(teleportee)) {
-                    if (!this.plugin.getMVPerms().hasPermission(teleporter, "multiverse.core.spawn.self", true)) {
-                        teleporter.sendMessage("Sorry you don't have permission to go to the world spawn!");
-                        teleporter.sendMessage(ChatColor.RED + "  (multiverse.core.spawn.self)");
-                        return;
-                    }
-                } else {
-                    if (!this.plugin.getMVPerms().hasPermission(teleporter, "multiverse.core.spawn.other", true)) {
-                        teleporter.sendMessage("Sorry you don't have permission to send " + teleportee.getDisplayName() + "to the world spawn!");
-                        teleporter.sendMessage(ChatColor.RED + "  (multiverse.core.spawn.other)");
-                        return;
-                    }
-                }
-            }
-        }
-
-        if (d.getLocation(teleportee) == null) {
-            teleporter.sendMessage("Sorry Boss, I tried everything, but just couldn't teleport ya there!");
-            return;
-        }
-        if (!this.playerTeleporter.safelyTeleport(teleporter, teleportee, d)) {
-            this.plugin.log(Level.FINE, "Could not teleport " + teleportee.getName() + " to " + LocationManipulation.strCoordsRaw(d.getLocation(teleportee)));
-            this.plugin.log(Level.FINE, "Queueing Command");
-            Class<?> paramTypes[] = {CommandSender.class, Player.class, Location.class};
-            List<Object> items = new ArrayList<Object>();
-            items.add(teleporter);
-            items.add(teleportee);
-            items.add(d.getLocation(teleportee));
-            String player = "you";
-            if (!teleportee.equals(teleporter)) {
-                player = teleportee.getName();
-            }
-            String message = ChatColor.GREEN + "Multiverse" + ChatColor.WHITE + " did not teleport " + ChatColor.AQUA + player + ChatColor.WHITE + " to " + ChatColor.DARK_AQUA + d.getName() + ChatColor.WHITE + " because it was unsafe.";
-            this.plugin.getCommandHandler().queueCommand(sender, "mvteleport", "teleportPlayer", items, paramTypes, message, "Would you like to try anyway?", "", "", 15);
-        } else {
-            // Player was teleported successfully (or the tp event was fired I should say);
-
-        }
-    }
-
-    private boolean checkSendPermissions(CommandSender teleporter, Player teleportee, MVDestination destination) {
-        MVMessaging message = this.plugin.getMessaging();
-        if (teleporter.equals(teleportee)) {
-            if (!this.plugin.getMVPerms().hasPermission(teleporter, "multiverse.teleport.self." + destination.getIdentifier(), true)) {
-                message.sendMessages(teleporter, new String[]{"You don't have permission to teleport yourself to a " + ChatColor.GREEN + destination.getType() + " Destination.", ChatColor.RED + "   (multiverse.teleport.self." + destination.getIdentifier() + ")"});
-                return false;
-            }
-        } else {
-            if (!this.plugin.getMVPerms().hasPermission(teleporter, "multiverse.teleport.other." + destination.getIdentifier(), true)) {
-                message.sendMessages(teleporter, new String[]{"You don't have permission to teleport another player to a " + ChatColor.GREEN + destination.getType() + " Destination.", ChatColor.RED + "   (multiverse.teleport.other." + destination.getIdentifier() + ")"});
-                return false;
-            }
-        }
-        return true;
+    public boolean hasPermission(CommandIssuer issuer) {
+        return this.plugin.getDestinationsProvider().hasAnyTeleportPermission(issuer);
    }
 }
@@ -1,37 +1,40 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
 package com.onarandombox.MultiverseCore.commands;

+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.annotation.CommandAlias;
+import co.aikar.commands.annotation.CommandCompletion;
+import co.aikar.commands.annotation.CommandPermission;
+import co.aikar.commands.annotation.Description;
+import co.aikar.commands.annotation.Subcommand;
+import co.aikar.commands.annotation.Syntax;
 import com.onarandombox.MultiverseCore.MultiverseCore;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.PermissionDefault;
+import com.onarandombox.MultiverseCore.api.MVWorld;
+import org.jetbrains.annotations.NotNull;

-import java.util.List;
-
-public class UnloadCommand extends MultiverseCommand {
-
-    public UnloadCommand(MultiverseCore plugin) {
+@CommandAlias("mv")
+public class UnloadCommand extends MultiverseCoreCommand {
+    public UnloadCommand(@NotNull MultiverseCore plugin) {
        super(plugin);
-        this.setName("Unload World");
-        this.setCommandUsage("/mv unload" + ChatColor.GREEN + " {WORLD}");
-        this.setArgRange(1, 1);
-        this.addKey("mvunload");
-        this.addKey("mv unload");
-        this.setPermission("multiverse.core.unload", "Unloads a world from Multiverse. This does NOT remove the world folder. This does NOT remove it from the config file.", PermissionDefault.OP);
    }

-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        if (this.plugin.getMVWorldManager().unloadWorld(args.get(0))) {
-            sender.sendMessage("World Unloaded!");
-        } else {
-            sender.sendMessage("Error trying to unload world!");
+    @Subcommand("unload")
+    @CommandPermission("multiverse.core.unload")
+    @CommandCompletion("@mvworlds")
+    @Syntax("<world>")
+    @Description("Unloads a world from Multiverse. This does NOT remove the world folder. This does NOT remove it from the config file.")
+    public void onUnloadCommand(BukkitCommandIssuer issuer,
+
+                                @Syntax("<world>")
+                                @Description("Name of the world you want to unload.")
+                                MVWorld world
+    ) {
+        issuer.sendMessage(String.format("Unloading world '%s'...", world.getColoredWorldString()));
+
+        //TODO API: Should be able to use MVWorld object directly
+        if (!this.plugin.getMVWorldManager().unloadWorld(world.getName())) {
+            issuer.sendMessage(String.format("Error unloading world '%s'! See console for more details.", world.getColoredWorldString()));
+            return;
        }
+        issuer.sendMessage(String.format("Unloaded world '%s'!", world.getColoredWorldString()));
    }
 }
@@ -1,115 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.event.MVVersionRequestEvent;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-import java.io.OutputStreamWriter;
-import java.net.URL;
-import java.net.URLConnection;
-import java.net.URLEncoder;
-import java.text.DateFormat;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.List;
-import java.util.logging.Level;
-
-public class VersionCommand extends MultiverseCommand {
-
-    public VersionCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Multiverse Version");
-        this.setCommandUsage("/mv version " + ChatColor.GOLD + "-p");
-        this.setArgRange(0, 1);
-        this.addKey("mv version");
-        this.addKey("mvv");
-        this.addKey("mvversion");
-        this.setPermission("multiverse.core.version", "Dumps version info to the console, optionally to pastebin.com with a -p.", PermissionDefault.TRUE);
-    }
-
-    private String pasteBinBuffer = "";
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // Check if the command was sent from a Player.
-        if (sender instanceof Player) {
-            sender.sendMessage("Version info dumped to console. Please check your server logs.");
-        }
-
-        logAndAddToPasteBinBuffer("Multiverse-Core Version: " + this.plugin.getDescription().getVersion());
-        logAndAddToPasteBinBuffer("Bukkit Version: " + this.plugin.getServer().getVersion());
-        logAndAddToPasteBinBuffer("Loaded Worlds: " + this.plugin.getMVWorldManager().getMVWorlds().size());
-        logAndAddToPasteBinBuffer("Multiverse Plugins Loaded: " + this.plugin.getPluginCount());
-        logAndAddToPasteBinBuffer("Economy being used: " + this.plugin.getBank().getEconUsed());
-        logAndAddToPasteBinBuffer("Permissions Plugin: " + this.plugin.getMVPerms().getType());
-        logAndAddToPasteBinBuffer("Dumping Config Values: (version " + this.plugin.getMVConfiguration().getString("version", "NOT SET") + ")");
-        logAndAddToPasteBinBuffer("messagecooldown: " + "Not yet IMPLEMENTED");
-        logAndAddToPasteBinBuffer("teleportcooldown: " + "Not yet IMPLEMENTED");
-        logAndAddToPasteBinBuffer("worldnameprefix: " + MultiverseCore.PrefixChat);
-        logAndAddToPasteBinBuffer("enforceaccess: " + MultiverseCore.EnforceAccess);
-        logAndAddToPasteBinBuffer("enforcegamemodes: " + MultiverseCore.EnforceGameModes);
-        logAndAddToPasteBinBuffer("bedrespawn: " + MultiverseCore.BedRespawn);
-        logAndAddToPasteBinBuffer("debug: " + MultiverseCore.GlobalDebug);
-        logAndAddToPasteBinBuffer("Special Code: FRN002");
-
-        MVVersionRequestEvent versionEvent = new MVVersionRequestEvent(pasteBinBuffer);
-        this.plugin.getServer().getPluginManager().callEvent(versionEvent);
-        pasteBinBuffer = versionEvent.getPasteBinBuffer();
-
-        if (args.size() == 1 && args.get(0).equalsIgnoreCase("-p")) {
-            String pasteBinUrl = postToPasteBin();
-            sender.sendMessage("Version info dumped here: " + ChatColor.GREEN + pasteBinUrl);
-            this.plugin.log(Level.INFO, "Version info dumped here: " + pasteBinUrl);
-        }
-    }
-
-    private void logAndAddToPasteBinBuffer(String string) {
-        this.pasteBinBuffer += "[Multiverse-Core] " + string + "\n";
-        this.plugin.log(Level.INFO, string);
-    }
-
-    private String postToPasteBin() {
-        try {
-            String data = URLEncoder.encode("api_dev_key", "UTF-8") + "=" + URLEncoder.encode("d61d68d31e8e0392b59b50b277411c71", "UTF-8");
-            data += "&" + URLEncoder.encode("api_option", "UTF-8") + "=" + URLEncoder.encode("paste", "UTF-8");
-            data += "&" + URLEncoder.encode("api_paste_code", "UTF-8") + "=" + URLEncoder.encode(this.pasteBinBuffer, "UTF-8");
-            data += "&" + URLEncoder.encode("api_paste_private", "UTF-8") + "=" + URLEncoder.encode("1", "UTF-8");
-            data += "&" + URLEncoder.encode("api_paste_format", "UTF-8") + "=" + URLEncoder.encode("yaml", "UTF-8");
-            DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
-            Date date = new Date();
-            data += "&" + URLEncoder.encode("api_paste_name", "UTF-8") + "=" + URLEncoder.encode("Multiverse 2 Dump " + dateFormat.format(date), "UTF-8");
-            data += "&" + URLEncoder.encode("api_user_key", "UTF-8") + "=" + URLEncoder.encode("c052ac52d2b0db88d36cc32ca462d151", "UTF-8");
-            URL url = new URL("http://pastebin.com/api/api_post.php");
-            URLConnection conn = url.openConnection();
-            conn.setDoOutput(true);
-            OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
-            wr.write(data);
-            wr.flush();
-
-            BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
-            String line;
-            String pasteBinUrl = "";
-            while ((line = rd.readLine()) != null) {
-                pasteBinUrl = line;
-            }
-            wr.close();
-            rd.close();
-            return pasteBinUrl;
-        } catch (Exception e) {
-            System.out.print(e);
-            return "Error Posting to pastebin.com";
-        }
-    }
-}
@@ -1,101 +0,0 @@
-/******************************************************************************
- * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
- * Multiverse 2 is licensed under the BSD License.                            *
- * For more information please check the README.md file included              *
- * with this project.                                                         *
- ******************************************************************************/
-
-package com.onarandombox.MultiverseCore.commands;
-
-import com.onarandombox.MultiverseCore.MultiverseCore;
-import com.onarandombox.MultiverseCore.api.MultiverseWorld;
-import com.onarandombox.MultiverseCore.utils.WorldManager;
-import org.bukkit.ChatColor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.PermissionDefault;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class WhoCommand extends MultiverseCommand {
-
-    private WorldManager worldManager;
-
-    public WhoCommand(MultiverseCore plugin) {
-        super(plugin);
-        this.setName("Who?");
-        this.setCommandUsage("/mv who" + ChatColor.GOLD + " [WORLD]");
-        this.setArgRange(0, 1);
-        this.addKey("mv who");
-        this.addKey("mvw");
-        this.addKey("mvwho");
-        this.setPermission("multiverse.core.list.who", "States who is in what world.", PermissionDefault.OP);
-        this.worldManager = this.plugin.getMVWorldManager();
-    }
-
-    @Override
-    public void runCommand(CommandSender sender, List<String> args) {
-        // If this command was sent from a Player then we need to check Permissions
-        Player p = null;
-        // By default, show all from the console
-        boolean showAll = true;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-            showAll = false;
-        }
-
-        List<MultiverseWorld> worlds = new ArrayList<MultiverseWorld>();
-
-        if (args.size() > 0) {
-            MultiverseWorld world = this.worldManager.getMVWorld(args.get(0));
-            if (args.get(0).equalsIgnoreCase("--all") || args.get(0).equalsIgnoreCase("-a")) {
-                showAll = true;
-                worlds = new ArrayList<MultiverseWorld>(this.worldManager.getMVWorlds());
-            } else if (world != null) {
-                if (!world.isHidden()) {
-                    worlds.add(world);
-                }
-            } else {
-                sender.sendMessage(ChatColor.RED + "World does not exist");
-                return;
-            }
-        } else {
-            worlds = new ArrayList<MultiverseWorld>(this.worldManager.getMVWorlds());
-        }
-
-        if (worlds.size() == 0) {
-            sender.sendMessage("Multiverse does not know about any of your worlds :(");
-        } else if (worlds.size() == 1) {
-            sender.sendMessage(ChatColor.AQUA + "--- Players in" + worlds.get(0).getColoredWorldString() + ChatColor.AQUA + " ---");
-        } else {
-            sender.sendMessage(ChatColor.AQUA + "--- There are players in ---");
-        }
-
-        for (MultiverseWorld world : worlds) {
-            if (!(this.worldManager.isMVWorld(world.getName()))) {
-                continue;
-            }
-
-            if (p != null && (!this.plugin.getMVPerms().canEnterWorld(p, world))) {
-                continue;
-            }
-            List<Player> players = world.getCBWorld().getPlayers();
-
-            String result = "";
-            if (players.size() <= 0 && !showAll) {
-                continue;
-            }
-
-            if (players.size() <= 0) {
-                result = "Empty";
-            } else {
-                for (Player player : players) {
-                    result += player.getDisplayName() + " ";
-                }
-            }
-
-            sender.sendMessage(world.getColoredWorldString() + ChatColor.WHITE + " - " + result);
-        }
-    }
-}
@@ -0,0 +1,4 @@
+/**
+ * This package contains all the commands for Multiverse-Core.
+ */
+package com.onarandombox.MultiverseCore.commands;
@@ -0,0 +1,102 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import co.aikar.commands.BukkitCommandCompletionContext;
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.PaperCommandCompletions;
+import com.google.common.collect.Sets;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MVWorld;
+import com.onarandombox.MultiverseCore.api.MVWorldManager;
+import com.onarandombox.MultiverseCore.destination.ParsedDestination;
+import org.bukkit.GameRule;
+import org.jetbrains.annotations.NotNull;
+
+public class MVCommandCompletions extends PaperCommandCompletions {
+    protected final MVCommandManager commandManager;
+    private final MultiverseCore plugin;
+    private final MVWorldManager worldManager;
+
+    public MVCommandCompletions(MVCommandManager mvCommandManager, MultiverseCore plugin) {
+        super(mvCommandManager);
+        this.commandManager = mvCommandManager;
+        this.plugin = plugin;
+        this.worldManager = plugin.getMVWorldManager();
+
+        registerAsyncCompletion("destinations", this::suggestDestinations);
+        registerAsyncCompletion("flags", this::suggestFlags);
+        registerStaticCompletion("gamerules", this::suggestGamerules);
+        registerAsyncCompletion("mvworlds", this::suggestMVWorlds);
+
+        setDefaultCompletion("destinations", ParsedDestination.class);
+        setDefaultCompletion("flags", String[].class);
+        setDefaultCompletion("gamerules", GameRule.class);
+        setDefaultCompletion("mvworlds", MVWorld.class);
+    }
+
+    private Collection<String> suggestDestinations(BukkitCommandCompletionContext context) {
+        if (context.hasConfig("playerOnly") && !context.getIssuer().isPlayer()) {
+            return Collections.emptyList();
+        }
+
+        return this.plugin.getDestinationsProvider()
+                .suggestDestinations((BukkitCommandIssuer)context.getIssuer(), context.getInput());
+    }
+
+    private Collection<String> suggestFlags(@NotNull BukkitCommandCompletionContext context) {
+        return this.commandManager.getFlagsManager().suggest(
+                context.getConfig("groupName", ""), context.getContextValue(String[].class));
+    }
+
+    private Collection<String> suggestGamerules() {
+        return Arrays.stream(GameRule.values()).map(GameRule::getName).collect(Collectors.toList());
+    }
+
+    private Collection<String> suggestMVWorlds(BukkitCommandCompletionContext context) {
+        if (context.hasConfig("playerOnly") && !context.getIssuer().isPlayer()) {
+            return Collections.emptyList();
+        }
+
+        if (!context.hasConfig("multiple")) {
+            return getMVWorldNames(context);
+        }
+
+        String input = context.getInput();
+        int lastComma = input.lastIndexOf(',');
+        String currentWorldsString = input.substring(0, lastComma + 1);
+        Set<String> currentWorlds = Sets.newHashSet(input.split(","));
+        return getMVWorldNames(context).stream()
+                .filter(world -> !currentWorlds.contains(world))
+                .map(world -> currentWorldsString + world)
+                .collect(Collectors.toList());
+    }
+
+    private List<String> getMVWorldNames(BukkitCommandCompletionContext context) {
+        String scope = context.getConfig("scope", "loaded");
+        List<String> worlds = new ArrayList<>();
+        switch (scope) {
+            case "both":
+                worlds.addAll(worldManager.getUnloadedWorlds());
+            case "loaded":
+                worldManager.getMVWorlds()
+                        .stream()
+                        .map(MVWorld::getName)
+                        .forEach(worlds::add);
+                break;
+            case "unloaded":
+                worlds.addAll(worldManager.getUnloadedWorlds());
+                break;
+            case "potential":
+                worlds.addAll(worldManager.getPotentialWorlds());
+                break;
+        }
+        return worlds;
+    }
+}
@@ -0,0 +1,75 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import co.aikar.commands.BukkitCommandExecutionContext;
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.BukkitConditionContext;
+import co.aikar.commands.CommandConditions;
+import co.aikar.commands.ConditionContext;
+import co.aikar.commands.ConditionFailedException;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.world.WorldNameChecker;
+
+public class MVCommandConditions {
+    static void load(MVCommandManager commandManager, MultiverseCore plugin) {
+        new MVCommandConditions(commandManager, plugin);
+    }
+
+    private final MVCommandManager commandManager;
+    private final MultiverseCore plugin;
+
+    public MVCommandConditions(MVCommandManager commandManager, MultiverseCore plugin) {
+        this.commandManager = commandManager;
+        this.plugin = plugin;
+
+        CommandConditions<BukkitCommandIssuer, BukkitCommandExecutionContext, BukkitConditionContext> conditions
+                = commandManager.getCommandConditions();
+
+        conditions.addCondition(String.class, "validWorldName", this::checkValidWorldName);
+    }
+
+    private void checkValidWorldName(ConditionContext<BukkitCommandIssuer> context,
+                                     BukkitCommandExecutionContext executionContext,
+                                     String worldName
+    ) {
+        String scope = context.getConfigValue("scope", "loaded");
+
+        switch (scope) {
+            // Worlds that are loaded
+            case "loaded":
+                if (!this.plugin.getMVWorldManager().isMVWorld(worldName)) {
+                    throw new ConditionFailedException("World with name '" + worldName + "' does not exist or is not loaded!");
+                }
+                break;
+            // Worlds that are unloaded
+            case "unloaded":
+                if (!this.plugin.getMVWorldManager().hasUnloadedWorld(worldName, false)) {
+                    if (this.plugin.getMVWorldManager().isMVWorld(worldName)) {
+                        throw new ConditionFailedException("World with name '" + worldName + "' is loaded already!");
+                    }
+                    throw new ConditionFailedException("World with name '" + worldName + "' does not exist!");
+                }
+                break;
+            // World that are loaded or unloaded
+            case "both":
+                if (!this.plugin.getMVWorldManager().hasUnloadedWorld(worldName, true)) {
+                    throw new ConditionFailedException("World with name '" + worldName + "' does not exist!");
+                }
+                break;
+            // World that are does not exist
+            case "new":
+                if (this.plugin.getMVWorldManager().hasUnloadedWorld(worldName, true)) {
+                    throw new ConditionFailedException("World with name '" + worldName + "' already exists!");
+                }
+                switch (WorldNameChecker.checkName(worldName)) {
+                    case INVALID_CHARS:
+                        throw new ConditionFailedException("World name '" + worldName + "' contains invalid characters!");
+                    case BLACKLISTED:
+                        throw new ConditionFailedException("World name '" + worldName + "' is used for critical server operations and is blacklisted!");
+                }
+                break;
+            // Probably a typo happened here
+            default:
+                throw new ConditionFailedException("Unknown scope '" + scope + "'!");
+        }
+    }
+}
@@ -0,0 +1,291 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import co.aikar.commands.BukkitCommandExecutionContext;
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.InvalidCommandArgument;
+import co.aikar.commands.PaperCommandContexts;
+import co.aikar.commands.contexts.ContextResolver;
+import com.google.common.base.Strings;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MVWorld;
+import com.onarandombox.MultiverseCore.commandtools.context.GameRuleValue;
+import com.onarandombox.MultiverseCore.destination.ParsedDestination;
+import com.onarandombox.MultiverseCore.display.filters.ContentFilter;
+import com.onarandombox.MultiverseCore.display.filters.DefaultContentFilter;
+import com.onarandombox.MultiverseCore.display.filters.RegexContentFilter;
+import com.onarandombox.MultiverseCore.utils.PlayerFinder;
+import org.bukkit.GameRule;
+import org.bukkit.entity.Player;
+
+public class MVCommandContexts extends PaperCommandContexts {
+    private final MultiverseCore plugin;
+
+    public MVCommandContexts(MVCommandManager mvCommandManager, MultiverseCore plugin) {
+        super(mvCommandManager);
+        this.plugin = plugin;
+
+        registerIssuerOnlyContext(BukkitCommandIssuer.class, BukkitCommandExecutionContext::getIssuer);
+        registerOptionalContext(ContentFilter.class, this::parseContentFilter);
+        registerContext(ParsedDestination.class, this::parseDestination);
+        registerContext(GameRule.class, this::parseGameRule);
+        registerContext(GameRuleValue.class, this::parseGameRuleValue);
+        registerIssuerAwareContext(MVWorld.class, this::parseMVWorld);
+        registerIssuerAwareContext(MVWorld[].class, this::parseMVWorldArray);
+        registerIssuerAwareContext(Player.class, this::parsePlayer);
+        registerIssuerAwareContext(Player[].class, this::parsePlayerArray);
+    }
+
+    private ContentFilter parseContentFilter(BukkitCommandExecutionContext context) {
+        if (Strings.isNullOrEmpty(context.getFirstArg())) {
+            return DefaultContentFilter.get();
+        }
+        String filterString = context.popFirstArg();
+        return RegexContentFilter.fromString(filterString);
+    }
+
+    private ParsedDestination<?> parseDestination(BukkitCommandExecutionContext context) {
+        String destination = context.popFirstArg();
+        if (Strings.isNullOrEmpty(destination)) {
+            throw new InvalidCommandArgument("No destination specified.");
+        }
+
+        ParsedDestination<?> parsedDestination = plugin.getDestinationsProvider().parseDestination(destination);
+        if (parsedDestination == null) {
+            throw new InvalidCommandArgument("The destination " + destination + " is not valid.");
+        }
+
+        return parsedDestination;
+    }
+
+    private GameRule<?> parseGameRule(BukkitCommandExecutionContext context) {
+        String gameRuleName = context.popFirstArg();
+        if (Strings.isNullOrEmpty(gameRuleName)) {
+            throw new InvalidCommandArgument("No game rule specified.");
+        }
+
+        GameRule<?> gameRule = GameRule.getByName(gameRuleName);
+        if (gameRule == null) {
+            throw new InvalidCommandArgument("The game rule " + gameRuleName + " is not valid.");
+        }
+
+        return gameRule;
+    }
+
+    private GameRuleValue parseGameRuleValue(BukkitCommandExecutionContext context) {
+        GameRule<?> gameRule = (GameRule<?>) context.getResolvedArg(GameRule.class);
+        if (gameRule == null) {
+            throw new InvalidCommandArgument("No game rule specified.");
+        }
+        String valueString = context.getFirstArg();
+        if (Strings.isNullOrEmpty(valueString)) {
+            throw new InvalidCommandArgument("No game rule value specified.");
+        }
+
+        ContextResolver<?, BukkitCommandExecutionContext> resolver = getResolver(gameRule.getType());
+        if (resolver == null) {
+            return new GameRuleValue(valueString);
+        }
+
+        Object resolvedValue = resolver.getContext(context);
+        if (resolvedValue == null) {
+            throw new InvalidCommandArgument("The game rule value " + valueString + " is not valid for game rule " + gameRule.getName() + ".");
+        }
+
+        return new GameRuleValue(resolvedValue);
+    }
+
+    private MVWorld parseMVWorld(BukkitCommandExecutionContext context) {
+        String resolve = context.getFlagValue("resolve", "");
+
+        // Get world based on sender only
+        if (resolve.equals("issuerOnly")) {
+            if (context.getIssuer().isPlayer()) {
+                return plugin.getMVWorldManager().getMVWorld(context.getIssuer().getPlayer().getWorld());
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("This command can only be used by a player in a Multiverse World.");
+        }
+
+        String worldName = context.getFirstArg();
+        MVWorld world = plugin.getMVWorldManager().getMVWorld(worldName);
+
+        // Get world based on input, fallback to sender if input is not a world
+        if (resolve.equals("issuerAware")) {
+            if (world != null) {
+                context.popFirstArg();
+                return world;
+            }
+            if (context.getIssuer().isPlayer()) {
+                return plugin.getMVWorldManager().getMVWorld(context.getIssuer().getPlayer().getWorld());
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("Player is not in a Multiverse World.");
+        }
+
+        // Get world based on input only
+        if (world != null) {
+            context.popFirstArg();
+            return world;
+        }
+        if (!context.isOptional()) {
+            return null;
+        }
+        throw new InvalidCommandArgument("World " + worldName + " is not a loaded multiverse world.");
+    }
+
+    private MVWorld[] parseMVWorldArray(BukkitCommandExecutionContext context) {
+        String resolve = context.getFlagValue("resolve", "");
+
+        MVWorld playerWorld = null;
+        if (context.getIssuer().isPlayer()) {
+            playerWorld = plugin.getMVWorldManager().getMVWorld(context.getIssuer().getPlayer().getWorld());
+        }
+
+        // Get world based on sender only
+        if (resolve.equals("issuerOnly")) {
+            if (playerWorld != null) {
+                return new MVWorld[]{playerWorld};
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("This command can only be used by a player in a Multiverse World.");
+        }
+
+        String worldStrings = context.getFirstArg();
+        String[] worldNames = worldStrings.split(",");
+        Set<MVWorld> worlds = new HashSet<>(worldNames.length);
+        for (String worldName : worldNames) {
+            if ("*".equals(worldName)) {
+                worlds.addAll(plugin.getMVWorldManager().getMVWorlds());
+                break;
+            }
+            MVWorld world = plugin.getMVWorldManager().getMVWorld(worldName);
+            if (world == null) {
+                throw new InvalidCommandArgument("World " + worldName + " is not a loaded multiverse world.");
+            }
+            worlds.add(world);
+        }
+
+        // Get world based on input, fallback to sender if input is not a world
+        if (resolve.equals("issuerAware")) {
+            if (!worlds.isEmpty()) {
+                context.popFirstArg();
+                return worlds.toArray(new MVWorld[0]);
+            }
+            if (playerWorld != null) {
+                return new MVWorld[]{playerWorld};
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("Player is not in a Multiverse World.");
+        }
+
+        // Get world based on input only
+        if (!worlds.isEmpty()) {
+            context.popFirstArg();
+            return worlds.toArray(new MVWorld[0]);
+        }
+        if (!context.isOptional()) {
+            return null;
+        }
+        throw new InvalidCommandArgument("World " + worldStrings + " is not a loaded multiverse world.");
+    }
+
+    private Player parsePlayer(BukkitCommandExecutionContext context) {
+        String resolve = context.getFlagValue("resolve", "");
+
+        // Get player based on sender only
+        if (resolve.equals("issuerOnly")) {
+            if (context.getIssuer().isPlayer()) {
+                return context.getIssuer().getPlayer();
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("This command can only be used by a player.");
+        }
+
+        String playerIdentifier = context.getFirstArg();
+        Player player = PlayerFinder.get(playerIdentifier, context.getSender());
+
+        // Get player based on input, fallback to sender if input is not a player
+        if (resolve.equals("issuerAware")) {
+            if (player != null) {
+                context.popFirstArg();
+                return player;
+            }
+            if (context.getIssuer().isPlayer()) {
+                return context.getIssuer().getPlayer();
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("Invalid player: " + playerIdentifier
+                    + ". Either specify an online player or use this command as a player.");
+        }
+
+        // Get player based on input only
+        if (player != null) {
+            context.popFirstArg();
+            return player;
+        }
+        if (!context.isOptional()) {
+            return null;
+        }
+        throw new InvalidCommandArgument("Player " + playerIdentifier + " not found.");
+    }
+
+
+    private Player[] parsePlayerArray(BukkitCommandExecutionContext context) {
+        String resolve = context.getFlagValue("resolve", "");
+
+        // Get player based on sender only
+        if (resolve.equals("issuerOnly")) {
+            if (context.getIssuer().isPlayer()) {
+                return new Player[]{context.getIssuer().getPlayer()};
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("This command can only be used by a player.");
+        }
+
+        String playerIdentifier = context.getFirstArg();
+        Player[] players = PlayerFinder.getMulti(playerIdentifier, context.getSender()).toArray(new Player[0]);
+
+        // Get player based on input, fallback to sender if input is not a player
+        if (resolve.equals("issuerAware")) {
+            if (players.length > 0) {
+                context.popFirstArg();
+                return players;
+            }
+            if (context.getIssuer().isPlayer()) {
+                return new Player[]{context.getIssuer().getPlayer()};
+            }
+            if (context.isOptional()) {
+                return null;
+            }
+            throw new InvalidCommandArgument("Invalid player: " + playerIdentifier
+                    + ". Either specify an online player or use this command as a player.");
+        }
+
+        // Get player based on input only
+        if (players.length > 0) {
+            context.popFirstArg();
+            return players;
+        }
+        if (!context.isOptional()) {
+            return null;
+        }
+        throw new InvalidCommandArgument("Player " + playerIdentifier + " not found.");
+    }
+}
@@ -0,0 +1,86 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import java.util.Locale;
+
+import co.aikar.commands.BukkitCommandCompletionContext;
+import co.aikar.commands.BukkitCommandExecutionContext;
+import co.aikar.commands.CommandCompletions;
+import co.aikar.commands.CommandContexts;
+import co.aikar.commands.PaperCommandManager;
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlagsManager;
+import com.onarandombox.MultiverseCore.commandtools.queue.CommandQueueManager;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Main class to manage permissions.
+ */
+public class MVCommandManager extends PaperCommandManager {
+
+    private final MultiverseCore plugin;
+    private CommandFlagsManager flagsManager;
+    private CommandQueueManager commandQueueManager;
+
+    public MVCommandManager(@NotNull MultiverseCore plugin) {
+        super(plugin);
+        this.plugin = plugin;
+
+        // Setup conditions
+        MVCommandConditions.load(this, plugin);
+
+        // Setup locale
+        this.addSupportedLanguage(Locale.ENGLISH);
+        this.locales.addMessageBundles("multiverse-core");
+        this.locales.loadLanguages();
+    }
+
+    /**
+     * Gets class responsible for flag handling.
+     *
+     * @return A not-null {@link CommandFlagsManager}.
+     */
+    public synchronized @NotNull CommandFlagsManager getFlagsManager() {
+        if (this.flagsManager == null) {
+            this.flagsManager = new CommandFlagsManager();
+        }
+        return flagsManager;
+    }
+
+    /**
+     * Manager for command that requires /mv confirm before execution.
+     *
+     * @return A non-null {@link CommandQueueManager}.
+     */
+    public synchronized @NotNull CommandQueueManager getCommandQueueManager() {
+        if (this.commandQueueManager == null) {
+            this.commandQueueManager = new CommandQueueManager(this.plugin);
+        }
+        return commandQueueManager;
+    }
+
+    /**
+     * Gets class responsible for parsing string args into objects.
+     *
+     * @return A not-null {@link CommandContexts}.
+     */
+    @Override
+    public synchronized @NotNull CommandContexts<BukkitCommandExecutionContext> getCommandContexts() {
+        if (this.contexts == null) {
+            this.contexts = new MVCommandContexts(this, plugin);
+        }
+        return this.contexts;
+    }
+
+    /**
+     * Gets class responsible for tab-completion handling.
+     *
+     * @return A not-null {@link CommandCompletions}.
+     */
+    @Override
+    public synchronized @NotNull CommandCompletions<BukkitCommandCompletionContext> getCommandCompletions() {
+        if (this.completions == null) {
+            this.completions = new MVCommandCompletions(this, plugin);
+        }
+        return this.completions;
+    }
+}
@@ -0,0 +1,29 @@
+package com.onarandombox.MultiverseCore.commandtools;
+
+import co.aikar.commands.BaseCommand;
+import com.onarandombox.MultiverseCore.api.MVPlugin;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlagGroup;
+import com.onarandombox.MultiverseCore.commandtools.flags.CommandFlagsManager;
+import com.onarandombox.MultiverseCore.commandtools.flags.ParsedCommandFlags;
+import org.jetbrains.annotations.NotNull;
+
+public abstract class MultiverseCommand extends BaseCommand {
+    protected final CommandFlagsManager flagsManager;
+    private String flagGroupName;
+
+    protected MultiverseCommand(@NotNull MVPlugin plugin) {
+        this.flagsManager = plugin.getCore().getMVCommandManager().getFlagsManager();
+    }
+
+    protected void registerFlagGroup(@NotNull CommandFlagGroup flagGroup) {
+        if (flagGroupName != null) {
+            throw new IllegalStateException("Flag group already registered! (name: " + flagGroupName + ")");
+        }
+        flagsManager.registerFlagGroup(flagGroup);
+        flagGroupName = flagGroup.getName();
+    }
+
+    protected @NotNull ParsedCommandFlags parseFlags(@NotNull String[] flags) {
+        return flagsManager.parse(flagGroupName, flags);
+    }
+}
@@ -0,0 +1,13 @@
+package com.onarandombox.MultiverseCore.commandtools.context;
+
+public class GameRuleValue {
+    private final Object value;
+
+    public GameRuleValue(Object value) {
+        this.value = value;
+    }
+
+    public Object getValue() {
+        return value;
+    }
+}
@@ -0,0 +1,93 @@
+package com.onarandombox.MultiverseCore.commandtools.flags;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Represents a flag.
+ */
+public class CommandFlag {
+    /**
+     * A builder for a flag.
+     *
+     * @param key The key for the new flag.
+     * @return The builder.
+     */
+    public static @NotNull Builder<?> builder(@NotNull String key){
+        return new Builder<>(key);
+    }
+
+    private final String key;
+    private final List<String> aliases;
+
+    /**
+     * Creates a new flag.
+     *
+     * @param builder The builder.
+     */
+    protected CommandFlag(@NotNull Builder<?> builder) {
+        key = builder.key;
+        aliases = builder.aliases;
+    }
+
+    /**
+     * Get the key of this flag.
+     *
+     * @return The key of this flag.
+     */
+    public @NotNull String getKey() {
+        return key;
+    }
+
+    /**
+     * Get the aliases of this flag.
+     *
+     * @return The aliases of this flag.
+     */
+    public @NotNull List<String> getAliases() {
+        return aliases;
+    }
+
+    /**
+     * A builder for a flag.
+     *
+     * @param <S> The type of the builder.
+     */
+    public static class Builder<S extends Builder<?>> {
+        private final String key;
+        private final List<String> aliases;
+
+        /**
+         * Create a new builder.
+         *
+         * @param key The key for the new flag.
+         */
+        public Builder(@NotNull String key) {
+            this.key = key;
+            aliases = new ArrayList<>();
+        }
+
+        /**
+         * Add one or more alias to the flag.
+         *
+         * @param alias The alias to add.
+         * @return The builder.
+         */
+        public @NotNull S addAlias(@NotNull String...alias){
+            Collections.addAll(this.aliases, alias);
+            return (S) this;
+        }
+
+        /**
+         * Build the flag.
+         *
+         * @return The flag.
+         */
+        public @NotNull CommandFlag build(){
+            return new CommandFlag(this);
+        }
+    }
+}
@@ -0,0 +1,129 @@
+package com.onarandombox.MultiverseCore.commandtools.flags;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * A group of flags.
+ */
+public class CommandFlagGroup {
+    /**
+     * A builder for a flag group.
+     *
+     * @param name The name of the group.
+     * @return The builder.
+     */
+    public static @NotNull Builder builder(@NotNull String name) {
+        return new Builder(name);
+    }
+
+    private final String name;
+    private final List<String> keys;
+    private final Map<String, CommandFlag> keysFlagMap;
+
+    /**
+     * Creates a new flag group.
+     *
+     * @param builder The builder.
+     */
+    protected CommandFlagGroup(@NotNull Builder builder) {
+        name = builder.name;
+        keys = builder.keys;
+        keysFlagMap = builder.keysFlagMap;
+    }
+
+    /**
+     * Get the name of this group.
+     *
+     * @return The name of this group.
+     */
+    public @NotNull String getName() {
+        return name;
+    }
+
+    /**
+     * Check if this group contains a flag with the given key. Works with alias keys.
+     *
+     * @param key The key to check.
+     * @return True if the group contains a flag with the given key, false otherwise.
+     */
+    public boolean hasKey(@Nullable String key) {
+        return keysFlagMap.containsKey(key);
+    }
+
+    /**
+     * Get the remaining keys after the given flags have been removed. Works with alias keys.
+     *
+     * @param flags The flags to remove.
+     * @return The remaining keys.
+     */
+    public @NotNull Set<String> getRemainingKeys(@NotNull String[] flags) {
+        Set<String> keysRemaining = new HashSet<>(this.keys);
+        for (String flag : flags) {
+            CommandFlag mvFlag = this.getFlagByKey(flag);
+            if (mvFlag != null) {
+                keysRemaining.remove(mvFlag.getKey());
+            }
+        }
+        return keysRemaining;
+    }
+
+    /**
+     * Get a flag by its key. Alias keys are supported as well.
+     *
+     * @param key The key of the flag.
+     * @return The flag if found, null otherwise.
+     */
+    public @Nullable CommandFlag getFlagByKey(String key) {
+        return keysFlagMap.get(key);
+    }
+
+    /**
+     * A builder for {@link CommandFlagGroup}.
+     */
+    public static class Builder {
+        private final String name;
+        private final List<String> keys;
+        private final Map<String, CommandFlag> keysFlagMap;
+
+        /**
+         * Creates a new builder.
+         *
+         * @param name The name of the flag group.
+         */
+        public Builder(@NotNull String name) {
+            this.name = name;
+            this.keys = new ArrayList<>();
+            this.keysFlagMap = new HashMap<>();
+        }
+
+        /**
+         * Adds a flag to the group.
+         *
+         * @param flag The flag to add.
+         * @return The builder.
+         */
+        public @NotNull Builder add(CommandFlag flag) {
+            keys.add(flag.getKey());
+            keysFlagMap.put(flag.getKey(), flag);
+            flag.getAliases().forEach((alias) -> keysFlagMap.put(alias, flag));
+            return this;
+        }
+
+        /**
+         * Builds the flag group.
+         *
+         * @return The flag group.
+         */
+        public @NotNull CommandFlagGroup build() {
+            return new CommandFlagGroup(this);
+        }
+    }
+}
@@ -0,0 +1,93 @@
+package com.onarandombox.MultiverseCore.commandtools.flags;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import co.aikar.commands.InvalidCommandArgument;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Manages all the flag groups and parsing.
+ */
+public class CommandFlagsManager {
+    private final Map<String, CommandFlagGroup> flagGroupMap;
+
+    /**
+     * Creates a new FlagsManager.
+     */
+    public CommandFlagsManager() {
+        flagGroupMap = new HashMap<>();
+    }
+
+    /**
+     * Registers a flag group.
+     *
+     * @param flagGroup The target flag group to register.
+     */
+    public void registerFlagGroup(@NotNull CommandFlagGroup flagGroup) {
+        flagGroupMap.put(flagGroup.getName(), flagGroup);
+    }
+
+    /**
+     *  Get a flag group by name.
+     *
+     * @param groupName The target flag group name.
+     * @return The flag group if found, null otherwise.
+     */
+    public @Nullable CommandFlagGroup getFlagGroup(@Nullable String groupName) {
+        return this.flagGroupMap.get(groupName);
+    }
+
+    /**
+     * Autocompletes suggestions for flags.
+     *
+     * @param groupName The target flag group name.
+     * @param flags The current flags so far.
+     * @return The list of suggestions.
+     */
+    public @NotNull Collection<String> suggest(@Nullable String groupName, @NotNull String[] flags) {
+        CommandFlagGroup flagGroup = this.getFlagGroup(groupName);
+        if (flagGroup == null) {
+            return Collections.emptyList();
+        }
+
+        Collection<String> suggestions = new ArrayList<>();
+        CommandFlag currentFlag = (flags.length <= 1) ? null : flagGroup.getFlagByKey(flags[flags.length - 2]);
+
+        if (currentFlag instanceof CommandValueFlag) {
+            CommandValueFlag<?> valueFlag = (CommandValueFlag<?>) currentFlag;
+            if (valueFlag.getCompletion() != null) {
+                suggestions.addAll(valueFlag.getCompletion().get());
+            }
+            if (valueFlag.isOptional()) {
+                suggestions.addAll(flagGroup.getRemainingKeys(flags));
+            }
+        } else {
+            suggestions.addAll(flagGroup.getRemainingKeys(flags));
+        }
+
+        return suggestions;
+    }
+
+    /**
+     * Parses the flags.
+     *
+     * @param groupName The target flag group name.
+     * @param flags The flags to parse.
+     * @return The parsed flags.
+     *
+     * @throws InvalidCommandArgument If the flags are invalid.
+     */
+    public @NotNull ParsedCommandFlags parse(@Nullable String groupName, @NotNull String[] flags) {
+        CommandFlagGroup flagGroup = this.getFlagGroup(groupName);
+        if (flagGroup == null) {
+            return ParsedCommandFlags.EMPTY;
+        }
+
+        return new CommandFlagsParser(this.getFlagGroup(groupName), flags).parse();
+    }
+}
@@ -0,0 +1,118 @@
+package com.onarandombox.MultiverseCore.commandtools.flags;
+
+import co.aikar.commands.InvalidCommandArgument;
+
+/**
+ * Parses flags from a string array. Each parser should only be used once.
+ */
+public class CommandFlagsParser {
+    private final CommandFlagGroup flagGroup;
+    private final String[] flags;
+
+    private ParsedCommandFlags parsedFlags;
+    private boolean nextArgMayBeKey;
+    private boolean nextArgMayBeValue;
+    private CommandFlag currentFlag;
+
+    /**
+     * Creates a new CommandFlagsParser.
+     *
+     * @param flagGroup The flag group to parse flags for.
+     * @param flags The flags to parse.
+     */
+    public CommandFlagsParser(CommandFlagGroup flagGroup, String[] flags) {
+        this.flagGroup = flagGroup;
+        this.flags = flags;
+    }
+
+    /**
+     * Parses the flags.
+     *
+     * @return The parsed flags.
+     */
+    public ParsedCommandFlags parse() {
+        parsedFlags = new ParsedCommandFlags();
+
+        // First argument is always a key
+        this.nextArgMayBeKey = true;
+        this.nextArgMayBeValue = false;
+
+        for (String flag : flags) {
+            if (this.nextArgMayBeKey) {
+                if (parseKey(flag)) continue;
+            }
+            if (this.nextArgMayBeValue) {
+                if (parseValue(flag)) continue;
+            }
+            throw new InvalidCommandArgument(flag + " is not a valid flag.");
+        }
+
+        if (!this.nextArgMayBeKey && this.nextArgMayBeValue) {
+            throw new InvalidCommandArgument(currentFlag.getKey() + " requires a value!");
+        }
+
+        return parsedFlags;
+    }
+
+    /**
+     * Parses a key.
+     *
+     * @param flag The flag to parse.
+     * @return True if the flag was parsed as a key, false otherwise.
+     */
+    private boolean parseKey(String flag) {
+        CommandFlag potentialFlag = flagGroup.getFlagByKey(flag);
+        if (potentialFlag == null) {
+            return false;
+        }
+
+        this.currentFlag = potentialFlag;
+
+        if (this.currentFlag instanceof CommandValueFlag) {
+            CommandValueFlag<?> valueFlag = (CommandValueFlag<?>) this.currentFlag;
+
+            if (valueFlag.isOptional()) {
+                parsedFlags.addFlagResult(valueFlag.getKey(), valueFlag.getDefaultValue());
+                this.nextArgMayBeKey = true;
+                this.nextArgMayBeValue = true;
+                return true;
+            }
+
+            this.nextArgMayBeKey = false;
+            this.nextArgMayBeValue = true;
+            return true;
+        }
+
+        parsedFlags.addFlagResult(this.currentFlag.getKey(), null);
+        this.nextArgMayBeKey = true;
+        this.nextArgMayBeValue = false;
+
+        return true;
+    }
+
+    /**
+     * Parses a value.
+     *
+     * @param flag The flag to parse.
+     * @return True if the flag was parsed as a value, false otherwise.
+     */
+    private boolean parseValue(String flag) {
+        if (this.currentFlag == null) {
+            throw new InvalidCommandArgument("Some flag logic error occurred at " + flag + "");
+        }
+        if (flagGroup.hasKey(flag)) {
+            throw new InvalidCommandArgument(currentFlag.getKey() + " requires a value!");
+        }
+
+        Object flagValue;
+        CommandValueFlag<?> valueFlag = (CommandValueFlag<?>) this.currentFlag;
+        flagValue = valueFlag.getContext() != null ? valueFlag.getContext().apply(flag) : flag;
+        parsedFlags.addFlagResult(valueFlag.getKey(), flagValue);
+
+        // After a value, the next argument must be a key
+        this.nextArgMayBeKey = true;
+        this.nextArgMayBeValue = false;
+        this.currentFlag = null;
+        return true;
+    }
+}
@@ -0,0 +1,172 @@
+package com.onarandombox.MultiverseCore.commandtools.flags;
+
+import java.util.Collection;
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Represents a flag with a value.
+ *
+ * @param <T> The type of the value.
+ */
+public class CommandValueFlag<T> extends CommandFlag {
+    /**
+     * A builder for a flag.
+     *
+     * @param key  The key for the new flag.
+     * @param type The type of the value.
+     * @return The builder.
+     */
+    public static @NotNull <T> Builder<T, ?> builder(@NotNull String key, @NotNull Class<T> type) {
+        return new Builder<>(key, type);
+    }
+
+    private final Class<T> type;
+    private final boolean optional;
+    private final T defaultValue;
+    private final Function<String, T> context;
+    private final Supplier<Collection<String>> completion;
+
+    /**
+     * Creates a new flag.
+     *
+     * @param builder The builder.
+     */
+    protected CommandValueFlag(@NotNull Builder<T, ?> builder) {
+        super(builder);
+        type = builder.type;
+        optional = builder.optional;
+        defaultValue = builder.defaultValue;
+        context = builder.context;
+        completion = builder.completion;
+    }
+
+    /**
+     * Get the type of the value.
+     *
+     * @return The type of the value.
+     */
+    public @NotNull Class<T> getType() {
+        return type;
+    }
+
+    /**
+     * Check if it is optional for users to specify a value.
+     *
+     * @return True if the value is optional, false otherwise.
+     */
+    public boolean isOptional() {
+        return optional;
+    }
+
+    /**
+     * Get the default value. May be null.
+     *
+     * @return The default value.
+     */
+    public @Nullable T getDefaultValue() {
+        return defaultValue;
+    }
+
+    /**
+     * Get the context. May be null for {@link String} value type.
+     *
+     * @return The context.
+     */
+    public @Nullable Function<String, T> getContext() {
+        return context;
+    }
+
+    /**
+     * Get the completion. May be null.
+     *
+     * @return The completion.
+     */
+    public @Nullable Supplier<Collection<String>> getCompletion() {
+        return completion;
+    }
+
+    /**
+     * A builder for a flag.
+     *
+     * @param <T> The type of the value.
+     * @param <S> The type of the builder.
+     */
+    public static class Builder<T, S extends Builder<T, S>> extends CommandFlag.Builder<S> {
+        private final Class<T> type;
+        private boolean optional = false;
+        private T defaultValue = null;
+        private Function<String, T> context = null;
+        private Supplier<Collection<String>> completion = null;
+
+        /**
+         * Create a new builder.
+         *
+         * @param key  The key for the new flag.
+         * @param type The type of the value.
+         */
+        public Builder(@NotNull String key, @NotNull Class<T> type) {
+            super(key);
+            this.type = type;
+        }
+
+        /**
+         * Set the flag as optional for users to specify a value.
+         *
+         * @return The builder.
+         */
+        public @NotNull S optional() {
+            this.optional = true;
+            return (S) this;
+        }
+
+        /**
+         * Set the default value. Used if optional is true and user does not specify a value.
+         *
+         * @param defaultValue The default value.
+         * @return The builder.
+         */
+        public @NotNull S defaultValue(@NotNull T defaultValue) {
+            this.defaultValue = defaultValue;
+            return (S) this;
+        }
+
+        /**
+         * Set the context callback for parsing string into value type.
+         *
+         * @param context The context.
+         * @return The builder.
+         */
+        public @NotNull S context(@NotNull Function<String, T> context) {
+            this.context = context;
+            return (S) this;
+        }
+
+        /**
+         * Set the completion callback for autocomplete.
+         *
+         * @param completion The completion.
+         * @return The builder.
+         */
+        public @NotNull S completion(@NotNull Supplier<Collection<String>> completion) {
+            this.completion = completion;
+            return (S) this;
+        }
+
+        /**
+         * Build the flag.
+         *
+         * @return The flag.
+         */
+        @Override
+        public @NotNull CommandFlag build() {
+            if (context == null && !String.class.equals(type)) {
+                throw new IllegalStateException("Context is required for none-string value flags");
+            }
+            return new CommandValueFlag<>(this);
+        }
+    }
+}
@@ -0,0 +1,61 @@
+package com.onarandombox.MultiverseCore.commandtools.flags;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Object to contain the results of the flags present and its values.
+ */
+public class ParsedCommandFlags
+{
+    public static final ParsedCommandFlags EMPTY = new ParsedCommandFlags();
+
+    private final Map<String, Object> flagValues;
+
+    public ParsedCommandFlags() {
+        flagValues = new HashMap<>();
+    }
+
+    /**
+     * Add a flag result to the parsed flags.
+     *
+     * @param key   The key of the flag.
+     * @param value The value of the flag.
+     */
+    void addFlagResult(@NotNull String key, @Nullable Object value) {
+        flagValues.put(key, value);
+    }
+
+    /**
+     * Check if a flag is present.
+     *
+     * @param key The key of the flag.
+     * @return True if the flag is present, false otherwise.
+     */
+    public boolean hasFlag(@Nullable String key) {
+        return this.flagValues.containsKey(key);
+    }
+
+    public boolean hasFlagValue(@Nullable String key) {
+        return flagValue(key, Object.class) != null;
+    }
+
+    /**
+     * Get the value of a flag.
+     *
+     * @param key The key of the flag.
+     * @return The value of the flag, null if flag does not exist or no value.
+     */
+    public @Nullable <T> T flagValue(@Nullable String key, @NotNull Class<T> type) {
+        Object value = this.flagValues.get(key);
+        return (T) value;
+    }
+
+    public @NotNull <T> T flagValue(@Nullable String key, @NotNull T defaultValue, @NotNull Class<T> type) {
+        T value = flagValue(key, type);
+        return value != null ? value : defaultValue;
+    }
+}